51431213014 has 16 divisors (see below), whose sum is σ = 77869657152. Its totient is φ = 25474895488.

The previous prime is 51431212999. The next prime is 51431213023. The reversal of 51431213014 is 41031213415.

It is a self number, because there is not a number n which added to its sum of digits gives 51431213014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388227 + ... + 503569.

It is an arithmetic number, because the mean of its divisors is an integer number (4866853572).

Almost surely, 2^51431213014 is an apocalyptic number.

51431213014 is a deficient number, since it is larger than the sum of its proper divisors (26438444138).

51431213014 is a wasteful number, since it uses less digits than its factorization.

51431213014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117431.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 51431213014 its reverse (41031213415), we get a palindrome (92462426429).

The spelling of 51431213014 in words is "fifty-one billion, four hundred thirty-one million, two hundred thirteen thousand, fourteen".