857545216704 has 140 divisors (see below), whose sum is σ = 2773126730088. Its totient is φ = 259862169600.

The previous prime is 857545216643. The next prime is 857545216729. The reversal of 857545216704 is 407612545758.

It is a happy number.

857545216704 is a `hidden beast` number, since 8 + 5 + 7 + 54 + 521 + 67 + 0 + 4 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7462137 + ... + 7576184.

Almost surely, 2^857545216704 is an apocalyptic number.

It is an amenable number.

857545216704 is an abundant number, since it is smaller than the sum of its proper divisors (1915581513384).

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

857545216704 is a wasteful number, since it uses less digits than its factorization.

857545216704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15038356 (or 15038337 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 54.

The spelling of 857545216704 in words is "eight hundred fifty-seven billion, five hundred forty-five million, two hundred sixteen thousand, seven hundred four".