51357747475740 has 24 divisors (see below), whose sum is σ = 143801692932240. Its totient is φ = 13695399326848.

The previous prime is 51357747475739. The next prime is 51357747475757. The reversal of 51357747475740 is 4757474775315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427981228905 + ... + 427981229024.

It is an arithmetic number, because the mean of its divisors is an integer number (5991737205510).

Almost surely, 2^{51357747475740} is an apocalyptic number.

It is an amenable number.

51357747475740 is an abundant number, since it is smaller than the sum of its proper divisors (92443945456500).

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

51357747475740 is a wasteful number, since it uses less digits than its factorization.

51357747475740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855962457941 (or 855962457939 counting only the distinct ones).

The product of its (nonzero) digits is 403368000, while the sum is 66.

The spelling of 51357747475740 in words is "fifty-one trillion, three hundred fifty-seven billion, seven hundred forty-seven million, four hundred seventy-five thousand, seven hundred forty".