51446926564 has 24 divisors (see below), whose sum is σ = 98236631808. Its totient is φ = 23380259040.

The previous prime is 51446926547. The next prime is 51446926577. The reversal of 51446926564 is 46562964415.

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, 108237 + ... + 338539.

It is an arithmetic number, because the mean of its divisors is an integer number (4093192992).

Almost surely, 2^51446926564 is an apocalyptic number.

It is an amenable number.

51446926564 is a deficient number, since it is larger than the sum of its proper divisors (46789705244).

51446926564 is a wasteful number, since it uses less digits than its factorization.

51446926564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235395 (or 235393 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 52.

The spelling of 51446926564 in words is "fifty-one billion, four hundred forty-six million, nine hundred twenty-six thousand, five hundred sixty-four".