2151433872 has 100 divisors (see below), whose sum is σ = 7116457216. Its totient is φ = 614692800.

The previous prime is 2151433871. The next prime is 2151433909. The reversal of 2151433872 is 2783341512.

2151433872 is a `hidden beast` number, since 2 + 151 + 433 + 8 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2151433871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109504 + ... + 127647.

Almost surely, 2^2151433872 is an apocalyptic number.

It is an amenable number.

2151433872 is an abundant number, since it is smaller than the sum of its proper divisors (4965023344).

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

2151433872 is a wasteful number, since it uses less digits than its factorization.

2151433872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237178 (or 237163 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2151433872 is about 46383.5517398140. The cubic root of 2151433872 is about 1290.9497386755.

The spelling of 2151433872 in words is "two billion, one hundred fifty-one million, four hundred thirty-three thousand, eight hundred seventy-two".