31027623907 has 16 divisors (see below), whose sum is σ = 36744125440. Its totient is φ = 25647777792.

The previous prime is 31027623889. The next prime is 31027623919. The reversal of 31027623907 is 70932672013.

It is not a de Polignac number, because 31027623907 - 2⁷ = 31027623779 is a prime.

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 31027623907.

It is not an unprimeable number, because it can be changed into a prime (31027323907) 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 in 15 ways as a sum of consecutive naturals, for example, 628638 + ... + 676195.

It is an arithmetic number, because the mean of its divisors is an integer number (2296507840).

Almost surely, 2^31027623907 is an apocalyptic number.

31027623907 is a deficient number, since it is larger than the sum of its proper divisors (5716501533).

31027623907 is a wasteful number, since it uses less digits than its factorization.

31027623907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304962.

The product of its (nonzero) digits is 95256, while the sum is 40.

The spelling of 31027623907 in words is "thirty-one billion, twenty-seven million, six hundred twenty-three thousand, nine hundred seven".