51177657696 has 96 divisors (see below), whose sum is σ = 152926195968. Its totient is φ = 14834096640.

The previous prime is 51177657691. The next prime is 51177657721. The reversal of 51177657696 is 69675677115.

51177657696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51177657691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029271 + ... + 1077846.

It is an arithmetic number, because the mean of its divisors is an integer number (1592981208).

Almost surely, 2^51177657696 is an apocalyptic number.

It is an amenable number.

51177657696 is an abundant number, since it is smaller than the sum of its proper divisors (101748538272).

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

51177657696 is a wasteful number, since it uses less digits than its factorization.

51177657696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107164 (or 2107156 counting only the distinct ones).

The product of its digits is 16669800, while the sum is 60.

The spelling of 51177657696 in words is "fifty-one billion, one hundred seventy-seven million, six hundred fifty-seven thousand, six hundred ninety-six".