2172570134864 has 10 divisors (see below), whose sum is σ = 4209354636330. Its totient is φ = 1086285067424.

The previous prime is 2172570134837. The next prime is 2172570134923. The reversal of 2172570134864 is 4684310752712.

It can be written as a sum of positive squares in only one way, i.e., 2124481153600 + 48088981264 = 1457560^2 + 219292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67892816699 + ... + 67892816730.

It is an arithmetic number, because the mean of its divisors is an integer number (420935463633).

Almost surely, 2^{2172570134864} is an apocalyptic number.

It is an amenable number.

2172570134864 is a deficient number, since it is larger than the sum of its proper divisors (2036784501466).

2172570134864 is a wasteful number, since it uses less digits than its factorization.

2172570134864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135785633437 (or 135785633431 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 2172570134864 in words is "two trillion, one hundred seventy-two billion, five hundred seventy million, one hundred thirty-four thousand, eight hundred sixty-four".