31400542627 has 2 divisors, whose sum is σ = 31400542628. Its totient is φ = 31400542626.

The previous prime is 31400542601. The next prime is 31400542637. The reversal of 31400542627 is 72624500413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31400542627 is a prime.

It is a super-2 number, since 2×31400542627² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31400542592 and 31400542601.

It is not a weakly prime, because it can be changed into another prime (31400542637) 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 as a sum of consecutive naturals, namely, 15700271313 + 15700271314.

It is an arithmetic number, because the mean of its divisors is an integer number (15700271314).

Almost surely, 2^31400542627 is an apocalyptic number.

31400542627 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400542627 is an equidigital number, since it uses as much as digits as its factorization.

31400542627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 31400542627 in words is "thirty-one billion, four hundred million, five hundred forty-two thousand, six hundred twenty-seven".