77082575125 has 16 divisors (see below), whose sum is σ = 101857824432. Its totient is φ = 58038643200.

The previous prime is 77082575093. The next prime is 77082575137. The reversal of 77082575125 is 52157528077.

It can be written as a sum of positive squares in 8 ways, for example, as 1636768849 + 75445806276 = 40457^2 + 274674^2 .

It is not a de Polignac number, because 77082575125 - 2⁵ = 77082575093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18134952 + ... + 18139201.

It is an arithmetic number, because the mean of its divisors is an integer number (6366114027).

Almost surely, 2^77082575125 is an apocalyptic number.

It is an amenable number.

77082575125 is a deficient number, since it is larger than the sum of its proper divisors (24775249307).

77082575125 is a wasteful number, since it uses less digits than its factorization.

77082575125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36274185 (or 36274175 counting only the distinct ones).

The product of its (nonzero) digits is 1372000, while the sum is 49.

The spelling of 77082575125 in words is "seventy-seven billion, eighty-two million, five hundred seventy-five thousand, one hundred twenty-five".