51314306631 has 16 divisors (see below), whose sum is σ = 78246432768. Its totient is φ = 29302509600.

The previous prime is 51314306609. The next prime is 51314306669. The reversal of 51314306631 is 13660341315.

It is not a de Polignac number, because 51314306631 - 2¹⁹ = 51313782343 is a prime.

It is a super-2 number, since 2×51314306631² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51314306592 and 51314306601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51314306431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799680 + ... + 861461.

It is an arithmetic number, because the mean of its divisors is an integer number (4890402048).

Almost surely, 2^51314306631 is an apocalyptic number.

51314306631 is a deficient number, since it is larger than the sum of its proper divisors (26932126137).

51314306631 is a wasteful number, since it uses less digits than its factorization.

51314306631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662622.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 51314306631 its reverse (13660341315), we get a palindrome (64974647946).

The spelling of 51314306631 in words is "fifty-one billion, three hundred fourteen million, three hundred six thousand, six hundred thirty-one".