378830615688 has 128 divisors (see below), whose sum is σ = 1273380307200. Its totient is φ = 101870410752.

The previous prime is 378830615677. The next prime is 378830615699. The reversal of 378830615688 is 886516038873.

378830615688 is a `hidden beast` number, since 3 + 7 + 8 + 8 + 3 + 0 + 61 + 568 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (378830615677) and next prime (378830615699).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7343395 + ... + 7394802.

It is an arithmetic number, because the mean of its divisors is an integer number (9948283650).

Almost surely, 2^378830615688 is an apocalyptic number.

It is an amenable number.

378830615688 is an abundant number, since it is smaller than the sum of its proper divisors (894549691512).

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

378830615688 is a wasteful number, since it uses less digits than its factorization.

378830615688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14738236 (or 14738226 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 378830615688 in words is "three hundred seventy-eight billion, eight hundred thirty million, six hundred fifteen thousand, six hundred eighty-eight".