861741483872 has 24 divisors (see below), whose sum is σ = 1697625379296. Its totient is φ = 430598530432.

The previous prime is 861741483859. The next prime is 861741483899. The reversal of 861741483872 is 278384147168.

It is a super-2 number, since 2×861741483872² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8455163 + ... + 8556474.

It is an arithmetic number, because the mean of its divisors is an integer number (70734390804).

Almost surely, 2^861741483872 is an apocalyptic number.

It is an amenable number.

861741483872 is a deficient number, since it is larger than the sum of its proper divisors (835883895424).

861741483872 is a wasteful number, since it uses less digits than its factorization.

861741483872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17013230 (or 17013222 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 59.

The spelling of 861741483872 in words is "eight hundred sixty-one billion, seven hundred forty-one million, four hundred eighty-three thousand, eight hundred seventy-two".