77677464425 has 12 divisors (see below), whose sum is σ = 105076424976. Its totient is φ = 56492701200.

The previous prime is 77677464391. The next prime is 77677464439. The reversal of 77677464425 is 52446477677.

It is not a de Polignac number, because 77677464425 - 2²² = 77673270121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141231479 + ... + 141232028.

It is an arithmetic number, because the mean of its divisors is an integer number (8756368748).

Almost surely, 2^77677464425 is an apocalyptic number.

It is an amenable number.

77677464425 is a deficient number, since it is larger than the sum of its proper divisors (27398960551).

77677464425 is a wasteful number, since it uses less digits than its factorization.

77677464425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282463528 (or 282463523 counting only the distinct ones).

The product of its digits is 55319040, while the sum is 59.

The spelling of 77677464425 in words is "seventy-seven billion, six hundred seventy-seven million, four hundred sixty-four thousand, four hundred twenty-five".