378471158640 has 240 divisors, whose sum is σ = 1334797900800. Its totient is φ = 99647698176.

The previous prime is 378471158633. The next prime is 378471158647. The reversal of 378471158640 is 46851174873.

378471158640 is a `hidden beast` number, since 3 + 7 + 8 + 4 + 7 + 11 + 586 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (378471158633) and next prime (378471158647).

It is a tau number, because it is divible by the number of its divisors (240).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378471158647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1412541 + ... + 1658979.

It is an arithmetic number, because the mean of its divisors is an integer number (5561657920).

Almost surely, 2^378471158640 is an apocalyptic number.

378471158640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378471158640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667398950400).

378471158640 is an abundant number, since it is smaller than the sum of its proper divisors (956326742160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378471158640 is a wasteful number, since it uses less digits than its factorization.

378471158640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246546 (or 246528 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 378471158640 in words is "three hundred seventy-eight billion, four hundred seventy-one million, one hundred fifty-eight thousand, six hundred forty".