51214532431 has 8 divisors (see below), whose sum is σ = 51340034304. Its totient is φ = 51089099160.

The previous prime is 51214532419. The next prime is 51214532507. The reversal of 51214532431 is 13423541215.

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 51214532431 - 2¹³ = 51214524239 is a prime.

It is a super-2 number, since 2×51214532431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51214532393 and 51214532402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51214535431) 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, 1680576 + ... + 1710778.

It is an arithmetic number, because the mean of its divisors is an integer number (6417504288).

Almost surely, 2^51214532431 is an apocalyptic number.

51214532431 is a deficient number, since it is larger than the sum of its proper divisors (125501873).

51214532431 is a wasteful number, since it uses less digits than its factorization.

51214532431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34301.

The product of its digits is 14400, while the sum is 31.

The spelling of 51214532431 in words is "fifty-one billion, two hundred fourteen million, five hundred thirty-two thousand, four hundred thirty-one".