51112794031 has 24 divisors (see below), whose sum is σ = 60489364320. Its totient is φ = 42874363392.

The previous prime is 51112794013. The next prime is 51112794049. The reversal of 51112794031 is 13049721115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51112794013) and next prime (51112794049).

It is not a de Polignac number, because 51112794031 - 2⁷ = 51112793903 is a prime.

It is a super-2 number, since 2×51112794031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112794001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125611 + ... + 343516.

It is an arithmetic number, because the mean of its divisors is an integer number (2520390180).

Almost surely, 2^51112794031 is an apocalyptic number.

51112794031 is a deficient number, since it is larger than the sum of its proper divisors (9376570289).

51112794031 is a wasteful number, since it uses less digits than its factorization.

51112794031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469203 (or 469186 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 51112794031 in words is "fifty-one billion, one hundred twelve million, seven hundred ninety-four thousand, thirty-one".