51584120368264 has 32 divisors (see below), whose sum is σ = 105581090592000. Its totient is φ = 23432190304320.

The previous prime is 51584120368243. The next prime is 51584120368273. The reversal of 51584120368264 is 46286302148515.

It is a happy 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, 189077112 + ... + 189349735.

It is an arithmetic number, because the mean of its divisors is an integer number (3299409081000).

Almost surely, 2^{51584120368264} is an apocalyptic number.

It is an amenable number.

51584120368264 is an abundant number, since it is smaller than the sum of its proper divisors (53996970223736).

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

51584120368264 is a wasteful number, since it uses less digits than its factorization.

51584120368264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378428413 (or 378428409 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 51584120368264 in words is "fifty-one trillion, five hundred eighty-four billion, one hundred twenty million, three hundred sixty-eight thousand, two hundred sixty-four".