27323507631 has 16 divisors (see below), whose sum is σ = 43827180800. Its totient is φ = 14791673088.

The previous prime is 27323507599. The next prime is 27323507671. The reversal of 27323507631 is 13670532372.

It is not a de Polignac number, because 27323507631 - 2⁵ = 27323507599 is a prime.

It is a super-2 number, since 2×27323507631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27323507631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27323507671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34239586 + ... + 34240383.

It is an arithmetic number, because the mean of its divisors is an integer number (2739198800).

Almost surely, 2^27323507631 is an apocalyptic number.

27323507631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27323507631 is a deficient number, since it is larger than the sum of its proper divisors (16503673169).

27323507631 is a wasteful number, since it uses less digits than its factorization.

27323507631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68479998.

The product of its (nonzero) digits is 158760, while the sum is 39.

The spelling of 27323507631 in words is "twenty-seven billion, three hundred twenty-three million, five hundred seven thousand, six hundred thirty-one".