77863230855 has 40 divisors (see below), whose sum is σ = 144390074400. Its totient is φ = 40095082944.

The previous prime is 77863230773. The next prime is 77863230869. The reversal of 77863230855 is 55803236877.

It is not a de Polignac number, because 77863230855 - 2¹⁰ = 77863229831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3302995 + ... + 3326484.

It is an arithmetic number, because the mean of its divisors is an integer number (3609751860).

Almost surely, 2^77863230855 is an apocalyptic number.

77863230855 is a deficient number, since it is larger than the sum of its proper divisors (66526843545).

77863230855 is a wasteful number, since it uses less digits than its factorization.

77863230855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629525 (or 6629516 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 77863230855 in words is "seventy-seven billion, eight hundred sixty-three million, two hundred thirty thousand, eight hundred fifty-five".