51902698831 has 2 divisors, whose sum is σ = 51902698832. Its totient is φ = 51902698830.

The previous prime is 51902698823. The next prime is 51902698853. The reversal of 51902698831 is 13889620915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51902698831 - 2³ = 51902698823 is a prime.

It is a super-2 number, since 2×51902698831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51902698811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25951349415 + 25951349416.

It is an arithmetic number, because the mean of its divisors is an integer number (25951349416).

Almost surely, 2^51902698831 is an apocalyptic number.

51902698831 is a deficient number, since it is larger than the sum of its proper divisors (1).

51902698831 is an equidigital number, since it uses as much as digits as its factorization.

51902698831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 52.

The spelling of 51902698831 in words is "fifty-one billion, nine hundred two million, six hundred ninety-eight thousand, eight hundred thirty-one".