857841093120 has 160 divisors (see below), whose sum is σ = 2991721106880. Its totient is φ = 207961456640.

The previous prime is 857841093091. The next prime is 857841093139. The reversal of 857841093120 is 21390148758.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×857841093120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 857841093120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4992705 + ... + 5161664.

It is an arithmetic number, because the mean of its divisors is an integer number (18698256918).

Almost surely, 2^857841093120 is an apocalyptic number.

857841093120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

857841093120 is an abundant number, since it is smaller than the sum of its proper divisors (2133880013760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857841093120 is a wasteful number, since it uses less digits than its factorization.

857841093120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10154406 (or 10154390 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

It can be divided in two parts, 8578410 and 93120, that added together give a triangular number (8671530 = T₄₁₆₄).

The spelling of 857841093120 in words is "eight hundred fifty-seven billion, eight hundred forty-one million, ninety-three thousand, one hundred twenty".