85719000793 has 2 divisors, whose sum is σ = 85719000794. Its totient is φ = 85719000792.

The previous prime is 85719000779. The next prime is 85719000803. The reversal of 85719000793 is 39700091758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77307909849 + 8411090944 = 278043^2 + 91712^2 .

It is a cyclic number.

It is not a de Polignac number, because 85719000793 - 2²¹ = 85716903641 is a prime.

It is not a weakly prime, because it can be changed into another prime (85719001793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42859500396 + 42859500397.

It is an arithmetic number, because the mean of its divisors is an integer number (42859500397).

Almost surely, 2^85719000793 is an apocalyptic number.

It is an amenable number.

85719000793 is a deficient number, since it is larger than the sum of its proper divisors (1).

85719000793 is an equidigital number, since it uses as much as digits as its factorization.

85719000793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 85719000793 in words is "eighty-five billion, seven hundred nineteen million, seven hundred ninety-three", and thus it is an aban number.