2158804992 has 120 divisors (see below), whose sum is σ = 5813127936. Its totient is φ = 712572928.

The previous prime is 2158804951. The next prime is 2158805009. The reversal of 2158804992 is 2994088512.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8208253 + ... + 8208515.

Almost surely, 2^2158804992 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 2158804992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906563968).

2158804992 is an abundant number, since it is smaller than the sum of its proper divisors (3654322944).

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

2158804992 is an equidigital number, since it uses as much as digits as its factorization.

2158804992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 2158804992 is about 46462.9421367179. The cubic root of 2158804992 is about 1292.4223842391.

The spelling of 2158804992 in words is "two billion, one hundred fifty-eight million, eight hundred four thousand, nine hundred ninety-two".