857089507008 has 168 divisors, whose sum is σ = 2793129696432. Its totient is φ = 230477807616.

The previous prime is 857089506989. The next prime is 857089507019. The reversal of 857089507008 is 800705980758.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×857089507008² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2519541 + ... + 2839412.

Almost surely, 2^857089507008 is an apocalyptic number.

It is an amenable number.

857089507008 is an abundant number, since it is smaller than the sum of its proper divisors (1936040189424).

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

857089507008 is a wasteful number, since it uses less digits than its factorization.

857089507008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358999 (or 5358982 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 57.

The spelling of 857089507008 in words is "eight hundred fifty-seven billion, eighty-nine million, five hundred seven thousand, eight".