31066627676639 has 2 divisors, whose sum is σ = 31066627676640. Its totient is φ = 31066627676638.

The previous prime is 31066627676597. The next prime is 31066627676719. The reversal of 31066627676639 is 93667672666013.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31066627676639 is a prime.

It is a super-2 number, since 2×31066627676639² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31066627616639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15533313838319 + 15533313838320.

It is an arithmetic number, because the mean of its divisors is an integer number (15533313838320).

Almost surely, 2^{31066627676639} is an apocalyptic number.

31066627676639 is a deficient number, since it is larger than the sum of its proper divisors (1).

31066627676639 is an equidigital number, since it uses as much as digits as its factorization.

31066627676639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370355328, while the sum is 68.

The spelling of 31066627676639 in words is "thirty-one trillion, sixty-six billion, six hundred twenty-seven million, six hundred seventy-six thousand, six hundred thirty-nine".