74688403878 has 24 divisors (see below), whose sum is σ = 176536227816. Its totient is φ = 22632849600.

The previous prime is 74688403877. The next prime is 74688403883. The reversal of 74688403878 is 87830488647.

74688403878 is a `hidden beast` number, since 74 + 6 + 88 + 403 + 87 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74688403877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188606883 + ... + 188607278.

It is an arithmetic number, because the mean of its divisors is an integer number (7355676159).

Almost surely, 2^74688403878 is an apocalyptic number.

74688403878 is an abundant number, since it is smaller than the sum of its proper divisors (101847823938).

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

74688403878 is a wasteful number, since it uses less digits than its factorization.

74688403878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377214180 (or 377214177 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 74688403878 in words is "seventy-four billion, six hundred eighty-eight million, four hundred three thousand, eight hundred seventy-eight".