51761162512 has 20 divisors (see below), whose sum is σ = 101495535120. Its totient is φ = 25568766368.

The previous prime is 51761162507. The next prime is 51761162591. The reversal of 51761162512 is 21526116715.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19487062 + ... + 19489717.

It is an arithmetic number, because the mean of its divisors is an integer number (5074776756).

Almost surely, 2^51761162512 is an apocalyptic number.

It is an amenable number.

51761162512 is a deficient number, since it is larger than the sum of its proper divisors (49734372608).

51761162512 is a wasteful number, since it uses less digits than its factorization.

51761162512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38976870 (or 38976864 counting only the distinct ones).

The product of its digits is 25200, while the sum is 37.

The spelling of 51761162512 in words is "fifty-one billion, seven hundred sixty-one million, one hundred sixty-two thousand, five hundred twelve".