51900332659 has 16 divisors (see below), whose sum is σ = 60739227648. Its totient is φ = 43422658272.

The previous prime is 51900332639. The next prime is 51900332663. The reversal of 51900332659 is 95623300915.

It is a de Polignac number, because none of the positive numbers 2^k-51900332659 is a prime.

It is a super-2 number, since 2×51900332659² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51900332639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88747 + ... + 334180.

It is an arithmetic number, because the mean of its divisors is an integer number (3796201728).

Almost surely, 2^51900332659 is an apocalyptic number.

51900332659 is a deficient number, since it is larger than the sum of its proper divisors (8838894989).

51900332659 is a wasteful number, since it uses less digits than its factorization.

51900332659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423354.

The product of its (nonzero) digits is 218700, while the sum is 43.

The spelling of 51900332659 in words is "fifty-one billion, nine hundred million, three hundred thirty-two thousand, six hundred fifty-nine".