2173272651 has 36 divisors (see below), whose sum is σ = 3484834080. Its totient is φ = 1304028000.

The previous prime is 2173272637. The next prime is 2173272671. The reversal of 2173272651 is 1562723712.

It is not a de Polignac number, because 2173272651 - 2⁶ = 2173272587 is a prime.

It is a super-2 number, since 2×2173272651² = 9446228031169135602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2173272601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100110 + ... + 119868.

Almost surely, 2^2173272651 is an apocalyptic number.

2173272651 is a deficient number, since it is larger than the sum of its proper divisors (1311561429).

2173272651 is a wasteful number, since it uses less digits than its factorization.

2173272651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19888 (or 19874 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 2173272651 is about 46618.3724619382. The cubic root of 2173272651 is about 1295.3031000449.

The spelling of 2173272651 in words is "two billion, one hundred seventy-three million, two hundred seventy-two thousand, six hundred fifty-one".