51764728676442 has 32 divisors (see below), whose sum is σ = 106055256484800. Its totient is φ = 16833948516480.

The previous prime is 51764728676351. The next prime is 51764728676459. The reversal of 51764728676442 is 24467682746715.

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, 42772768 + ... + 43966340.

It is an arithmetic number, because the mean of its divisors is an integer number (3314226765150).

Almost surely, 2^{51764728676442} is an apocalyptic number.

51764728676442 is an abundant number, since it is smaller than the sum of its proper divisors (54290527808358).

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

51764728676442 is a wasteful number, since it uses less digits than its factorization.

51764728676442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369918.

The product of its digits is 758661120, while the sum is 69.

The spelling of 51764728676442 in words is "fifty-one trillion, seven hundred sixty-four billion, seven hundred twenty-eight million, six hundred seventy-six thousand, four hundred forty-two".