51736585902 has 8 divisors (see below), whose sum is σ = 103473171816. Its totient is φ = 17245528632.

The previous prime is 51736585729. The next prime is 51736585913. The reversal of 51736585902 is 20958563715.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

51736585902 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 4311382153 + ... + 4311382164.

It is an arithmetic number, because the mean of its divisors is an integer number (12934146477).

Almost surely, 2^51736585902 is an apocalyptic number.

51736585902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51736585902 is a wasteful number, since it uses less digits than its factorization.

51736585902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8622764322.

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 51736585902 in words is "fifty-one billion, seven hundred thirty-six million, five hundred eighty-five thousand, nine hundred two".