51295246064 has 20 divisors (see below), whose sum is σ = 99393023856. Its totient is φ = 25645433472.

The previous prime is 51295245929. The next prime is 51295246073. The reversal of 51295246064 is 46064259215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65492 + ... + 326924.

Almost surely, 2^51295246064 is an apocalyptic number.

It is an amenable number.

51295246064 is a deficient number, since it is larger than the sum of its proper divisors (48097777792).

51295246064 is a wasteful number, since it uses less digits than its factorization.

51295246064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273704 (or 273698 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 51295246064 in words is "fifty-one billion, two hundred ninety-five million, two hundred forty-six thousand, sixty-four".