77831376822368 has 24 divisors (see below), whose sum is σ = 165017486436768. Its totient is φ = 35922173917824.

The previous prime is 77831376822259. The next prime is 77831376822403. The reversal of 77831376822368 is 86322867313877.

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, 93547327496 + ... + 93547328327.

It is an arithmetic number, because the mean of its divisors is an integer number (6875728601532).

Almost surely, 2^{77831376822368} is an apocalyptic number.

It is an amenable number.

77831376822368 is an abundant number, since it is smaller than the sum of its proper divisors (87186109614400).

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

77831376822368 is a wasteful number, since it uses less digits than its factorization.

77831376822368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187094655846 (or 187094655838 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 71.

The spelling of 77831376822368 in words is "seventy-seven trillion, eight hundred thirty-one billion, three hundred seventy-six million, eight hundred twenty-two thousand, three hundred sixty-eight".