2172688572 has 48 divisors (see below), whose sum is σ = 5191778592. Its totient is φ = 706917120.

The previous prime is 2172688541. The next prime is 2172688597. The reversal of 2172688572 is 2758862712.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 116622 + ... + 133962.

It is an arithmetic number, because the mean of its divisors is an integer number (108162054).

Almost surely, 2^2172688572 is an apocalyptic number.

It is an amenable number.

2172688572 is an abundant number, since it is smaller than the sum of its proper divisors (3019090020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172688572 is a wasteful number, since it uses less digits than its factorization.

2172688572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17598 (or 17596 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 2172688572 is about 46612.1075687423. The cubic root of 2172688572 is about 1295.1870496995.

The spelling of 2172688572 in words is "two billion, one hundred seventy-two million, six hundred eighty-eight thousand, five hundred seventy-two".