2159944670 has 32 divisors (see below), whose sum is σ = 4210405920. Its totient is φ = 793054080.

The previous prime is 2159944667. The next prime is 2159944733. The reversal of 2159944670 is 764499512.

2159944670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2159944670² = 9330721954922817800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23141 + ... + 69680.

It is an arithmetic number, because the mean of its divisors is an integer number (131575185).

Almost surely, 2^2159944670 is an apocalyptic number.

2159944670 is a deficient number, since it is larger than the sum of its proper divisors (2050461250).

2159944670 is a wasteful number, since it uses less digits than its factorization.

2159944670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93020.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 2159944670 is about 46475.2048946532. The cubic root of 2159944670 is about 1292.6497764368.

The spelling of 2159944670 in words is "two billion, one hundred fifty-nine million, nine hundred forty-four thousand, six hundred seventy".