2191796496 has 100 divisors (see below), whose sum is σ = 6478847232. Its totient is φ = 715034304.

The previous prime is 2191796489. The next prime is 2191796531. The reversal of 2191796496 is 6946971912.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42921 + ... + 78903.

Almost surely, 2^2191796496 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 2191796496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3239423616).

2191796496 is an abundant number, since it is smaller than the sum of its proper divisors (4287050736).

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

2191796496 is a wasteful number, since it uses less digits than its factorization.

2191796496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36050 (or 36035 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 2191796496 is about 46816.6262774241. The cubic root of 2191796496 is about 1298.9728565071.

The spelling of 2191796496 in words is "two billion, one hundred ninety-one million, seven hundred ninety-six thousand, four hundred ninety-six".