856592480039 has 2 divisors, whose sum is σ = 856592480040. Its totient is φ = 856592480038.

The previous prime is 856592479993. The next prime is 856592480047. The reversal of 856592480039 is 930084295658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 856592480039 - 2⁸ = 856592479783 is a prime.

It is a super-2 number, since 2×856592480039² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 856592480039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856592480339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428296240019 + 428296240020.

It is an arithmetic number, because the mean of its divisors is an integer number (428296240020).

Almost surely, 2^856592480039 is an apocalyptic number.

856592480039 is a deficient number, since it is larger than the sum of its proper divisors (1).

856592480039 is an equidigital number, since it uses as much as digits as its factorization.

856592480039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 856592480039 in words is "eight hundred fifty-six billion, five hundred ninety-two million, four hundred eighty thousand, thirty-nine".