51114992239 has 2 divisors, whose sum is σ = 51114992240. Its totient is φ = 51114992238.

The previous prime is 51114992189. The next prime is 51114992281. The reversal of 51114992239 is 93229941115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51114992239 - 2¹¹ = 51114990191 is a prime.

It is a super-2 number, since 2×51114992239² (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 (51114992039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25557496119 + 25557496120.

It is an arithmetic number, because the mean of its divisors is an integer number (25557496120).

Almost surely, 2^51114992239 is an apocalyptic number.

51114992239 is a deficient number, since it is larger than the sum of its proper divisors (1).

51114992239 is an equidigital number, since it uses as much as digits as its factorization.

51114992239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 46.

The spelling of 51114992239 in words is "fifty-one billion, one hundred fourteen million, nine hundred ninety-two thousand, two hundred thirty-nine".