51993114431 has 8 divisors (see below), whose sum is σ = 52788756480. Its totient is φ = 51200910072.

The previous prime is 51993114401. The next prime is 51993114497. The reversal of 51993114431 is 13441139915.

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

It is a cyclic number.

It is not a de Polignac number, because 51993114431 - 2²² = 51988920127 is a prime.

It is a super-2 number, since 2×51993114431² (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 (51993114401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828935 + ... + 889448.

It is an arithmetic number, because the mean of its divisors is an integer number (6598594560).

Almost surely, 2^51993114431 is an apocalyptic number.

51993114431 is a deficient number, since it is larger than the sum of its proper divisors (795642049).

51993114431 is a wasteful number, since it uses less digits than its factorization.

51993114431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718845.

The product of its digits is 58320, while the sum is 41.

The spelling of 51993114431 in words is "fifty-one billion, nine hundred ninety-three million, one hundred fourteen thousand, four hundred thirty-one".