85990924727 has 2 divisors, whose sum is σ = 85990924728. Its totient is φ = 85990924726.

The previous prime is 85990924709. The next prime is 85990924771. The reversal of 85990924727 is 72742909958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85990924727 - 2²⁸ = 85722489271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85990924727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85990924027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42995462363 + 42995462364.

It is an arithmetic number, because the mean of its divisors is an integer number (42995462364).

Almost surely, 2^85990924727 is an apocalyptic number.

85990924727 is a deficient number, since it is larger than the sum of its proper divisors (1).

85990924727 is an equidigital number, since it uses as much as digits as its factorization.

85990924727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 85990924727 in words is "eighty-five billion, nine hundred ninety million, nine hundred twenty-four thousand, seven hundred twenty-seven".