51723495164 has 48 divisors (see below), whose sum is σ = 102663859200. Its totient is φ = 22588502400.

The previous prime is 51723495149. The next prime is 51723495169. The reversal of 51723495164 is 46159432715.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51723495169) 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, 53192 + ... + 326000.

It is an arithmetic number, because the mean of its divisors is an integer number (2138830400).

Almost surely, 2^51723495164 is an apocalyptic number.

It is an amenable number.

51723495164 is a deficient number, since it is larger than the sum of its proper divisors (50940364036).

51723495164 is a wasteful number, since it uses less digits than its factorization.

51723495164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272994 (or 272992 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The spelling of 51723495164 in words is "fifty-one billion, seven hundred twenty-three million, four hundred ninety-five thousand, one hundred sixty-four".