51407333765844 has 48 divisors (see below), whose sum is σ = 137323807947648. Its totient is φ = 14662354157568.

The previous prime is 51407333765797. The next prime is 51407333765857. The reversal of 51407333765844 is 44856733370415.

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, 530273949 + ... + 530370884.

It is an arithmetic number, because the mean of its divisors is an integer number (2860912665576).

Almost surely, 2^{51407333765844} is an apocalyptic number.

It is an amenable number.

51407333765844 is an abundant number, since it is smaller than the sum of its proper divisors (85916474181804).

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

51407333765844 is a wasteful number, since it uses less digits than its factorization.

51407333765844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060645424 (or 1060645422 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 60.

The spelling of 51407333765844 in words is "fifty-one trillion, four hundred seven billion, three hundred thirty-three million, seven hundred sixty-five thousand, eight hundred forty-four".