378878103450 has 672 divisors, whose sum is σ = 1339502873472. Its totient is φ = 77402304000.

The previous prime is 378878103377. The next prime is 378878103469. The reversal of 378878103450 is 54301878873.

378878103450 is a `hidden beast` number, since 3 + 7 + 8 + 87 + 8 + 103 + 450 = 666.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 171204544 + ... + 171206756.

Almost surely, 2^378878103450 is an apocalyptic number.

378878103450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 378878103450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669751436736).

378878103450 is an abundant number, since it is smaller than the sum of its proper divisors (960624770022).

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

378878103450 is a wasteful number, since it uses less digits than its factorization.

378878103450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322 (or 2302 counting only the distinct ones).

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

The spelling of 378878103450 in words is "three hundred seventy-eight billion, eight hundred seventy-eight million, one hundred three thousand, four hundred fifty".