77912092338 has 16 divisors (see below), whose sum is σ = 155846653536. Its totient is φ = 25966952640.

The previous prime is 77912092333. The next prime is 77912092361. The reversal of 77912092338 is 83329021977.

It is not an unprimeable number, because it can be changed into a prime (77912092333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890956 + ... + 974487.

It is an arithmetic number, because the mean of its divisors is an integer number (9740415846).

Almost surely, 2^77912092338 is an apocalyptic number.

77912092338 is an abundant number, since it is smaller than the sum of its proper divisors (77934561198).

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

77912092338 is a wasteful number, since it uses less digits than its factorization.

77912092338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872409.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 77912092338 in words is "seventy-seven billion, nine hundred twelve million, ninety-two thousand, three hundred thirty-eight".