857260459008 has 264 divisors, whose sum is σ = 2660078989152. Its totient is φ = 264927117312.

The previous prime is 857260459001. The next prime is 857260459019. The reversal of 857260459008 is 800954062758.

857260459008 is a `hidden beast` number, since 8 + 572 + 60 + 4 + 5 + 9 + 0 + 0 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (857260459001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10456191 + ... + 10537857.

Almost surely, 2^857260459008 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 857260459008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330039494576).

857260459008 is an abundant number, since it is smaller than the sum of its proper divisors (1802818530144).

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

857260459008 is a wasteful number, since it uses less digits than its factorization.

857260459008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81777 (or 81756 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 857260459008 in words is "eight hundred fifty-seven billion, two hundred sixty million, four hundred fifty-nine thousand, eight".