2151788112 has 80 divisors (see below), whose sum is σ = 6320121280. Its totient is φ = 700576128.

The previous prime is 2151788087. The next prime is 2151788123. The reversal of 2151788112 is 2118871512.

2151788112 is a `hidden beast` number, since 21 + 517 + 8 + 8 + 112 = 666.

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

It is a congruent number.

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, 39343 + ... + 76494.

It is an arithmetic number, because the mean of its divisors is an integer number (79001516).

Almost surely, 2^2151788112 is an apocalyptic number.

It is an amenable number.

2151788112 is an abundant number, since it is smaller than the sum of its proper divisors (4168333168).

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

2151788112 is a wasteful number, since it uses less digits than its factorization.

2151788112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115897 (or 115885 counting only the distinct ones).

The product of its digits is 8960, while the sum is 36.

The square root of 2151788112 is about 46387.3701776680. The cubic root of 2151788112 is about 1291.0205876946.

The spelling of 2151788112 in words is "two billion, one hundred fifty-one million, seven hundred eighty-eight thousand, one hundred twelve".