861832179162 has 48 divisors (see below), whose sum is σ = 1877775419520. Its totient is φ = 285670393056.

The previous prime is 861832179139. The next prime is 861832179179. The reversal of 861832179162 is 261971238168.

861832179162 is a `hidden beast` number, since 8 + 618 + 3 + 2 + 1 + 7 + 9 + 16 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 861832179099 and 861832179108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2336139 + ... + 2679777.

It is an arithmetic number, because the mean of its divisors is an integer number (39120321240).

Almost surely, 2^861832179162 is an apocalyptic number.

861832179162 is an abundant number, since it is smaller than the sum of its proper divisors (1015943240358).

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

861832179162 is a wasteful number, since it uses less digits than its factorization.

861832179162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344427 (or 344424 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 861832179162 in words is "eight hundred sixty-one billion, eight hundred thirty-two million, one hundred seventy-nine thousand, one hundred sixty-two".