2154433512 has 64 divisors (see below), whose sum is σ = 6715123200. Its totient is φ = 559592640.

The previous prime is 2154433507. The next prime is 2154433553. The reversal of 2154433512 is 2153344512.

It is a self number, because there is not a number n which added to its sum of digits gives 2154433512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581062 + ... + 584757.

It is an arithmetic number, because the mean of its divisors is an integer number (104923800).

Almost surely, 2^2154433512 is an apocalyptic number.

2154433512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2154433512 is an abundant number, since it is smaller than the sum of its proper divisors (4560689688).

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

2154433512 is a wasteful number, since it uses less digits than its factorization.

2154433512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165846 (or 1165842 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 2154433512 is about 46415.8756461623. The cubic root of 2154433512 is about 1291.5494296110.

The spelling of 2154433512 in words is "two billion, one hundred fifty-four million, four hundred thirty-three thousand, five hundred twelve".