51772142732 has 12 divisors (see below), whose sum is σ = 90807633840. Its totient is φ = 25827104496.

The previous prime is 51772142731. The next prime is 51772142743. The reversal of 51772142732 is 23724127715.

It is a self number, because there is not a number n which added to its sum of digits gives 51772142732.

It is not an unprimeable number, because it can be changed into a prime (51772142731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14739743 + ... + 14743254.

It is an arithmetic number, because the mean of its divisors is an integer number (7567302820).

Almost surely, 2^51772142732 is an apocalyptic number.

It is an amenable number.

51772142732 is a deficient number, since it is larger than the sum of its proper divisors (39035491108).

51772142732 is a wasteful number, since it uses less digits than its factorization.

51772142732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29483440 (or 29483438 counting only the distinct ones).

The product of its digits is 164640, while the sum is 41.

The spelling of 51772142732 in words is "fifty-one billion, seven hundred seventy-two million, one hundred forty-two thousand, seven hundred thirty-two".