378271640340 has 144 divisors (see below), whose sum is σ = 1252222747776. Its totient is φ = 91666502400.

The previous prime is 378271640293. The next prime is 378271640377. The reversal of 378271640340 is 43046172873.

378271640340 is a `hidden beast` number, since 37 + 8 + 271 + 6 + 4 + 0 + 340 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5236870 + ... + 5308610.

It is an arithmetic number, because the mean of its divisors is an integer number (8695991304).

Almost surely, 2^378271640340 is an apocalyptic number.

378271640340 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 378271640340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626111373888).

378271640340 is an abundant number, since it is smaller than the sum of its proper divisors (873951107436).

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

378271640340 is a wasteful number, since it uses less digits than its factorization.

378271640340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74430 (or 74425 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 378271640340 in words is "three hundred seventy-eight billion, two hundred seventy-one million, six hundred forty thousand, three hundred forty".