8539742023 has 2 divisors, whose sum is σ = 8539742024. Its totient is φ = 8539742022.

The previous prime is 8539741913. The next prime is 8539742063. The reversal of 8539742023 is 3202479358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8539742023 - 2²⁹ = 8002871111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8539742063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4269871011 + 4269871012.

It is an arithmetic number, because the mean of its divisors is an integer number (4269871012).

Almost surely, 2^8539742023 is an apocalyptic number.

8539742023 is a deficient number, since it is larger than the sum of its proper divisors (1).

8539742023 is an equidigital number, since it uses as much as digits as its factorization.

8539742023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 8539742023 is about 92410.7246102962. The cubic root of 8539742023 is about 2044.0032583023.

The spelling of 8539742023 in words is "eight billion, five hundred thirty-nine million, seven hundred forty-two thousand, twenty-three".