32686072631 has 2 divisors, whose sum is σ = 32686072632. Its totient is φ = 32686072630.

The previous prime is 32686072621. The next prime is 32686072651. The reversal of 32686072631 is 13627068623.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32686072631 is a prime.

It is a super-2 number, since 2×32686072631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32686072621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16343036315 + 16343036316.

It is an arithmetic number, because the mean of its divisors is an integer number (16343036316).

Almost surely, 2^32686072631 is an apocalyptic number.

32686072631 is a deficient number, since it is larger than the sum of its proper divisors (1).

32686072631 is an equidigital number, since it uses as much as digits as its factorization.

32686072631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 32686072631 in words is "thirty-two billion, six hundred eighty-six million, seventy-two thousand, six hundred thirty-one".