51727776756 has 48 divisors (see below), whose sum is σ = 127719825408. Its totient is φ = 16260613600.

The previous prime is 51727776739. The next prime is 51727776769. The reversal of 51727776756 is 65767772715.

It is a self number, because there is not a number n which added to its sum of digits gives 51727776756.

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, 1300260 + ... + 1339451.

It is an arithmetic number, because the mean of its divisors is an integer number (2660829696).

Almost surely, 2^51727776756 is an apocalyptic number.

It is an amenable number.

51727776756 is an abundant number, since it is smaller than the sum of its proper divisors (75992048652).

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

51727776756 is a wasteful number, since it uses less digits than its factorization.

51727776756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639812 (or 2639810 counting only the distinct ones).

The product of its digits is 30252600, while the sum is 60.

The spelling of 51727776756 in words is "fifty-one billion, seven hundred twenty-seven million, seven hundred seventy-six thousand, seven hundred fifty-six".