2172346670 has 64 divisors (see below), whose sum is σ = 4330307520. Its totient is φ = 779563008.

The previous prime is 2172346667. The next prime is 2172346697. The reversal of 2172346670 is 766432712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1279262 + ... + 1280958.

It is an arithmetic number, because the mean of its divisors is an integer number (67661055).

Almost surely, 2^2172346670 is an apocalyptic number.

2172346670 is a deficient number, since it is larger than the sum of its proper divisors (2157960850).

2172346670 is a wasteful number, since it uses less digits than its factorization.

2172346670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 2172346670 is about 46608.4399009450. The cubic root of 2172346670 is about 1295.1191077221.

The spelling of 2172346670 in words is "two billion, one hundred seventy-two million, three hundred forty-six thousand, six hundred seventy".