2173859612 has 12 divisors (see below), whose sum is σ = 3804698016. Its totient is φ = 1086803040.

The previous prime is 2173859609. The next prime is 2173859629. The reversal of 2173859612 is 2169583712.

It is a super-2 number, since 2×2173859612² = 9451331225369581088, which 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, 14312 + ... + 67472.

It is an arithmetic number, because the mean of its divisors is an integer number (317058168).

Almost surely, 2^2173859612 is an apocalyptic number.

It is an amenable number.

2173859612 is a deficient number, since it is larger than the sum of its proper divisors (1630838404).

2173859612 is a wasteful number, since it uses less digits than its factorization.

2173859612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63388 (or 63386 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 2173859612 is about 46624.6674197254. The cubic root of 2173859612 is about 1295.4197020684.

The spelling of 2173859612 in words is "two billion, one hundred seventy-three million, eight hundred fifty-nine thousand, six hundred twelve".