857285580006 has 64 divisors (see below), whose sum is σ = 1913807001600. Its totient is φ = 284453624448.

The previous prime is 857285579933. The next prime is 857285580043. The reversal of 857285580006 is 600085582758.

It is a happy number.

857285580006 is a `hidden beast` number, since 8 + 57 + 2 + 8 + 5 + 580 + 0 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36550975 + ... + 36574421.

It is an arithmetic number, because the mean of its divisors is an integer number (29903234400).

Almost surely, 2^857285580006 is an apocalyptic number.

857285580006 is an abundant number, since it is smaller than the sum of its proper divisors (1056521421594).

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

857285580006 is a wasteful number, since it uses less digits than its factorization.

857285580006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26530 (or 26524 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 54.

The spelling of 857285580006 in words is "eight hundred fifty-seven billion, two hundred eighty-five million, five hundred eighty thousand, six".