77902396018 has 16 divisors (see below), whose sum is σ = 117520603200. Its totient is φ = 38728940400.

The previous prime is 77902396009. The next prime is 77902396063. The reversal of 77902396018 is 81069320977.

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, 2372533 + ... + 2405143.

It is an arithmetic number, because the mean of its divisors is an integer number (7345037700).

Almost surely, 2^77902396018 is an apocalyptic number.

77902396018 is a deficient number, since it is larger than the sum of its proper divisors (39618207182).

77902396018 is a wasteful number, since it uses less digits than its factorization.

77902396018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39393.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 77902396018 in words is "seventy-seven billion, nine hundred two million, three hundred ninety-six thousand, eighteen".