378815252178 has 64 divisors (see below), whose sum is σ = 831240144000. Its totient is φ = 114136872960.

The previous prime is 378815252173. The next prime is 378815252191. The reversal of 378815252178 is 871252518873.

It is not an unprimeable number, because it can be changed into a prime (378815252173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8107708 + ... + 8154296.

It is an arithmetic number, because the mean of its divisors is an integer number (12988127250).

Almost surely, 2^378815252178 is an apocalyptic number.

378815252178 is an abundant number, since it is smaller than the sum of its proper divisors (452424891822).

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

378815252178 is a wasteful number, since it uses less digits than its factorization.

378815252178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47307.

The product of its digits is 7526400, while the sum is 57.

The spelling of 378815252178 in words is "three hundred seventy-eight billion, eight hundred fifteen million, two hundred fifty-two thousand, one hundred seventy-eight".