857907601136 has 80 divisors (see below), whose sum is σ = 1779982573824. Its totient is φ = 399146191872.

The previous prime is 857907601099. The next prime is 857907601139. The reversal of 857907601136 is 631106709758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857907601139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14610011 + ... + 14668613.

Almost surely, 2^857907601136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857907601136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889991286912).

857907601136 is an abundant number, since it is smaller than the sum of its proper divisors (922074972688).

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

857907601136 is a wasteful number, since it uses less digits than its factorization.

857907601136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59238 (or 59232 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 857907601136 in words is "eight hundred fifty-seven billion, nine hundred seven million, six hundred one thousand, one hundred thirty-six".