78037640044 has 24 divisors (see below), whose sum is σ = 168081071648. Its totient is φ = 30872033280.

The previous prime is 78037640027. The next prime is 78037640071. The reversal of 78037640044 is 44004673087.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107194197 + ... + 107194924.

Almost surely, 2^78037640044 is an apocalyptic number.

It is an amenable number.

78037640044 is an abundant number, since it is smaller than the sum of its proper divisors (90043431604).

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

78037640044 is a wasteful number, since it uses less digits than its factorization.

78037640044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214389145 (or 214389143 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 78037640044 in words is "seventy-eight billion, thirty-seven million, six hundred forty thousand, forty-four".