857342673552 has 80 divisors (see below), whose sum is σ = 2331558360000. Its totient is φ = 270717967872.

The previous prime is 857342673529. The next prime is 857342673553. The reversal of 857342673552 is 255376243758.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 857342673492 and 857342673501.

It is not an unprimeable number, because it can be changed into a prime (857342673553) 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, 14223574 + ... + 14283722.

It is an arithmetic number, because the mean of its divisors is an integer number (29144479500).

Almost surely, 2^857342673552 is an apocalyptic number.

It is an amenable number.

857342673552 is an abundant number, since it is smaller than the sum of its proper divisors (1474215686448).

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

857342673552 is a wasteful number, since it uses less digits than its factorization.

857342673552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75808 (or 75802 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 57.

The spelling of 857342673552 in words is "eight hundred fifty-seven billion, three hundred forty-two million, six hundred seventy-three thousand, five hundred fifty-two".