39899195023 has 2 divisors, whose sum is σ = 39899195024. Its totient is φ = 39899195022.

The previous prime is 39899194987. The next prime is 39899195047. The reversal of 39899195023 is 32059199893.

39899195023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39899195023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39899195093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19949597511 + 19949597512.

It is an arithmetic number, because the mean of its divisors is an integer number (19949597512).

Almost surely, 2^39899195023 is an apocalyptic number.

39899195023 is a deficient number, since it is larger than the sum of its proper divisors (1).

39899195023 is an equidigital number, since it uses as much as digits as its factorization.

39899195023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 39899195023 in words is "thirty-nine billion, eight hundred ninety-nine million, one hundred ninety-five thousand, twenty-three".