51701685036 has 48 divisors (see below), whose sum is σ = 121194796800. Its totient is φ = 17154423360.

The previous prime is 51701684999. The next prime is 51701685097. The reversal of 51701685036 is 63058610715.

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, 2447841 + ... + 2468871.

It is an arithmetic number, because the mean of its divisors is an integer number (2524891600).

Almost surely, 2^51701685036 is an apocalyptic number.

It is an amenable number.

51701685036 is an abundant number, since it is smaller than the sum of its proper divisors (69493111764).

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

51701685036 is a wasteful number, since it uses less digits than its factorization.

51701685036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21974 (or 21972 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 51701685036 in words is "fifty-one billion, seven hundred one million, six hundred eighty-five thousand, thirty-six".