51446015031764 has 6 divisors (see below), whose sum is σ = 90030526305594. Its totient is φ = 25723007515880.

The previous prime is 51446015031667. The next prime is 51446015031809. The reversal of 51446015031764 is 46713051064415.

It can be written as a sum of positive squares in only one way, i.e., 44209333980100 + 7236681051664 = 6649010^2 + 2690108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430751878967 + ... + 6430751878974.

It is an arithmetic number, because the mean of its divisors is an integer number (15005087717599).

Almost surely, 2^{51446015031764} is an apocalyptic number.

It is an amenable number.

51446015031764 is a deficient number, since it is larger than the sum of its proper divisors (38584511273830).

51446015031764 is a wasteful number, since it uses less digits than its factorization.

51446015031764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861503757945 (or 12861503757943 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 51446015031764 in words is "fifty-one trillion, four hundred forty-six billion, fifteen million, thirty-one thousand, seven hundred sixty-four".