77031357855328 has 24 divisors (see below), whose sum is σ = 151704581306040. Its totient is φ = 38503210222080.

The previous prime is 77031357855323. The next prime is 77031357855329. The reversal of 77031357855328 is 82355875313077.

It is a self number, because there is not a number n which added to its sum of digits gives 77031357855328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77031357855323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389546658 + ... + 389744353.

It is an arithmetic number, because the mean of its divisors is an integer number (6321024221085).

Almost surely, 2^{77031357855328} is an apocalyptic number.

It is an amenable number.

77031357855328 is a deficient number, since it is larger than the sum of its proper divisors (74673223450712).

77031357855328 is a wasteful number, since it uses less digits than its factorization.

77031357855328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779294110 (or 779294102 counting only the distinct ones).

The product of its (nonzero) digits is 148176000, while the sum is 64.

The spelling of 77031357855328 in words is "seventy-seven trillion, thirty-one billion, three hundred fifty-seven million, eight hundred fifty-five thousand, three hundred twenty-eight".