859500744139 has 2 divisors, whose sum is σ = 859500744140. Its totient is φ = 859500744138.

The previous prime is 859500744101. The next prime is 859500744163. The reversal of 859500744139 is 931447005958.

It is a happy number.

859500744139 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 not a de Polignac number, because 859500744139 - 2²⁷ = 859366526411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 859500744139.

It is not a weakly prime, because it can be changed into another prime (859500747139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429750372069 + 429750372070.

It is an arithmetic number, because the mean of its divisors is an integer number (429750372070).

Almost surely, 2^859500744139 is an apocalyptic number.

859500744139 is a deficient number, since it is larger than the sum of its proper divisors (1).

859500744139 is an equidigital number, since it uses as much as digits as its factorization.

859500744139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 859500744139 in words is "eight hundred fifty-nine billion, five hundred million, seven hundred forty-four thousand, one hundred thirty-nine".