51711739996 has 48 divisors (see below), whose sum is σ = 104962798080. Its totient is φ = 21833818560.

The previous prime is 51711739979. The next prime is 51711739999. The reversal of 51711739996 is 69993711715.

It is a self number, because there is not a number n which added to its sum of digits gives 51711739996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51711739999) 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, 803326 + ... + 865306.

It is an arithmetic number, because the mean of its divisors is an integer number (2186724960).

Almost surely, 2^51711739996 is an apocalyptic number.

It is an amenable number.

51711739996 is an abundant number, since it is smaller than the sum of its proper divisors (53251058084).

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

51711739996 is a wasteful number, since it uses less digits than its factorization.

51711739996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62434 (or 62432 counting only the distinct ones).

The product of its digits is 3214890, while the sum is 58.

The spelling of 51711739996 in words is "fifty-one billion, seven hundred eleven million, seven hundred thirty-nine thousand, nine hundred ninety-six".