2153547672 has 128 divisors (see below), whose sum is σ = 5670086400. Its totient is φ = 680988672.

The previous prime is 2153547601. The next prime is 2153547689. The reversal of 2153547672 is 2767453512.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 6880188 + ... + 6880500.

It is an arithmetic number, because the mean of its divisors is an integer number (44297550).

Almost surely, 2^2153547672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153547672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2835043200).

2153547672 is an abundant number, since it is smaller than the sum of its proper divisors (3516538728).

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

2153547672 is a wasteful number, since it uses less digits than its factorization.

2153547672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 533 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 2153547672 is about 46406.3322403312. The cubic root of 2153547672 is about 1291.3723895702.

The spelling of 2153547672 in words is "two billion, one hundred fifty-three million, five hundred forty-seven thousand, six hundred seventy-two".