2187910992 has 40 divisors (see below), whose sum is σ = 5658068416. Its totient is φ = 728534016.

The previous prime is 2187910987. The next prime is 2187911017. The reversal of 2187910992 is 2990197812.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22848 + ... + 69984.

Almost surely, 2^2187910992 is an apocalyptic number.

It is an amenable number.

2187910992 is an abundant number, since it is smaller than the sum of its proper divisors (3470157424).

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

2187910992 is a wasteful number, since it uses less digits than its factorization.

2187910992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48115 (or 48109 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 48.

The square root of 2187910992 is about 46775.1108176132. The cubic root of 2187910992 is about 1298.2048184113.

The spelling of 2187910992 in words is "two billion, one hundred eighty-seven million, nine hundred ten thousand, nine hundred ninety-two".