856598376676 has 27 divisors (see below), whose sum is σ = 1743815930409. Its totient is φ = 367108036848.

The previous prime is 856598376661. The next prime is 856598376701. The reversal of 856598376676 is 676673895658.

The square root of 856598376676 is 925526.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 570287770276 + 286310606400 = 755174^2 + 535080^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12924310 + ... + 12990418.

Almost surely, 2^856598376676 is an apocalyptic number.

856598376676 is the 925526-th square number.

It is an amenable number.

856598376676 is an abundant number, since it is smaller than the sum of its proper divisors (887217553733).

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

856598376676 is an frugal number, since it uses more digits than its factorization.

856598376676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132236 (or 66118 counting only the distinct ones).

The product of its digits is 2743372800, while the sum is 76.

The spelling of 856598376676 in words is "eight hundred fifty-six billion, five hundred ninety-eight million, three hundred seventy-six thousand, six hundred seventy-six".