39937091023 has 2 divisors, whose sum is σ = 39937091024. Its totient is φ = 39937091022.

The previous prime is 39937091017. The next prime is 39937091041. The reversal of 39937091023 is 32019073993.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39937091023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39937091063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19968545511 + 19968545512.

It is an arithmetic number, because the mean of its divisors is an integer number (19968545512).

Almost surely, 2^39937091023 is an apocalyptic number.

39937091023 is a deficient number, since it is larger than the sum of its proper divisors (1).

39937091023 is an equidigital number, since it uses as much as digits as its factorization.

39937091023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 46.

The spelling of 39937091023 in words is "thirty-nine billion, nine hundred thirty-seven million, ninety-one thousand, twenty-three".