77831163088 has 20 divisors (see below), whose sum is σ = 172340432800. Its totient is φ = 33356212704.

The previous prime is 77831163079. The next prime is 77831163101. The reversal of 77831163088 is 88036113877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347460438 + ... + 347460661.

It is an arithmetic number, because the mean of its divisors is an integer number (8617021640).

Almost surely, 2^77831163088 is an apocalyptic number.

It is an amenable number.

77831163088 is an abundant number, since it is smaller than the sum of its proper divisors (94509269712).

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

77831163088 is a wasteful number, since it uses less digits than its factorization.

77831163088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694921114 (or 694921108 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 77831163088 in words is "seventy-seven billion, eight hundred thirty-one million, one hundred sixty-three thousand, eighty-eight".