857093091995 has 12 divisors (see below), whose sum is σ = 1196431989984. Its totient is φ = 587720977200.

The previous prime is 857093091983. The next prime is 857093092007. The reversal of 857093091995 is 599190390758.

It is an interprime number because it is at equal distance from previous prime (857093091983) and next prime (857093092007).

It is not a de Polignac number, because 857093091995 - 2⁶ = 857093091931 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1749169331 + ... + 1749169820.

It is an arithmetic number, because the mean of its divisors is an integer number (99702665832).

Almost surely, 2^857093091995 is an apocalyptic number.

857093091995 is a deficient number, since it is larger than the sum of its proper divisors (339338897989).

857093091995 is a wasteful number, since it uses less digits than its factorization.

857093091995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498339170 (or 3498339163 counting only the distinct ones).

The product of its (nonzero) digits is 27556200, while the sum is 65.

The spelling of 857093091995 in words is "eight hundred fifty-seven billion, ninety-three million, ninety-one thousand, nine hundred ninety-five".