2153643472 has 20 divisors (see below), whose sum is σ = 4316570820. Its totient is φ = 1039689728.

The previous prime is 2153643461. The next prime is 2153643493. The reversal of 2153643472 is 2743463512.

2153643472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 587383696 + 1566259776 = 24236^2 + 39576^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2320273 + ... + 2321200.

It is an arithmetic number, because the mean of its divisors is an integer number (215828541).

Almost surely, 2^2153643472 is an apocalyptic number.

It is an amenable number.

2153643472 is an abundant number, since it is smaller than the sum of its proper divisors (2162927348).

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

2153643472 is a wasteful number, since it uses less digits than its factorization.

2153643472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641510 (or 4641504 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 2153643472 is about 46407.3644155753. The cubic root of 2153643472 is about 1291.3915380730.

The spelling of 2153643472 in words is "two billion, one hundred fifty-three million, six hundred forty-three thousand, four hundred seventy-two".