2111920896 has 72 divisors (see below), whose sum is σ = 5635062720. Its totient is φ = 702186496.

The previous prime is 2111920861. The next prime is 2111920901. The reversal of 2111920896 is 6980291112.

It is a super-2 number, since 2×2111920896² = 8920419741922885632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 318511 + ... + 325073.

It is an arithmetic number, because the mean of its divisors is an integer number (78264760).

Almost surely, 2^2111920896 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 2111920896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2817531360).

2111920896 is an abundant number, since it is smaller than the sum of its proper divisors (3523141824).

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

2111920896 is an equidigital number, since it uses as much as digits as its factorization.

2111920896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 2111920896 is about 45955.6405243143. The cubic root of 2111920896 is about 1282.9977135663.

The spelling of 2111920896 in words is "two billion, one hundred eleven million, nine hundred twenty thousand, eight hundred ninety-six".