51195397696 has 21 divisors (see below), whose sum is σ = 101594459371. Its totient is φ = 25596793792.

The previous prime is 51195397691. The next prime is 51195397703. The reversal of 51195397696 is 69679359115.

The square root of 51195397696 is 226264.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51195397691) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1795971 + ... + 1824253.

Almost surely, 2^51195397696 is an apocalyptic number.

51195397696 is the 226264-th square number.

It is an amenable number.

51195397696 is a deficient number, since it is larger than the sum of its proper divisors (50399061675).

51195397696 is an frugal number, since it uses more digits than its factorization.

51195397696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56578 (or 28285 counting only the distinct ones).

The product of its digits is 13778100, while the sum is 61.

The spelling of 51195397696 in words is "fifty-one billion, one hundred ninety-five million, three hundred ninety-seven thousand, six hundred ninety-six".