785792857897 has 2 divisors, whose sum is σ = 785792857898. Its totient is φ = 785792857896.

The previous prime is 785792857841. The next prime is 785792857909. The reversal of 785792857897 is 798758297587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497961680896 + 287831177001 = 705664^2 + 536499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-785792857897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 785792857897.

It is not a weakly prime, because it can be changed into another prime (785792854897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392896428948 + 392896428949.

It is an arithmetic number, because the mean of its divisors is an integer number (392896428949).

Almost surely, 2^785792857897 is an apocalyptic number.

It is an amenable number.

785792857897 is a deficient number, since it is larger than the sum of its proper divisors (1).

785792857897 is an equidigital number, since it uses as much as digits as its factorization.

785792857897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4978713600, while the sum is 82.

The spelling of 785792857897 in words is "seven hundred eighty-five billion, seven hundred ninety-two million, eight hundred fifty-seven thousand, eight hundred ninety-seven".