51726805956 has 96 divisors (see below), whose sum is σ = 158549664000. Its totient is φ = 14269457664.

The previous prime is 51726805919. The next prime is 51726806009. The reversal of 51726805956 is 65950862715.

51726805956 is a `hidden beast` number, since 517 + 26 + 8 + 0 + 59 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1157761 + ... + 1201608.

It is an arithmetic number, because the mean of its divisors is an integer number (1651559000).

Almost surely, 2^51726805956 is an apocalyptic number.

It is an amenable number.

51726805956 is an abundant number, since it is smaller than the sum of its proper divisors (106822858044).

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

51726805956 is a wasteful number, since it uses less digits than its factorization.

51726805956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359418 (or 2359410 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 51726805956 in words is "fifty-one billion, seven hundred twenty-six million, eight hundred five thousand, nine hundred fifty-six".