2196880643 has 4 divisors (see below), whose sum is σ = 2312505960. Its totient is φ = 2081255328.

The previous prime is 2196880639. The next prime is 2196880667. The reversal of 2196880643 is 3460886912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2196880643 - 2² = 2196880639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2196880613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57812630 + ... + 57812667.

It is an arithmetic number, because the mean of its divisors is an integer number (578126490).

Almost surely, 2^2196880643 is an apocalyptic number.

2196880643 is a deficient number, since it is larger than the sum of its proper divisors (115625317).

2196880643 is a wasteful number, since it uses less digits than its factorization.

2196880643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115625316.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 2196880643 is about 46870.8933454441. The cubic root of 2196880643 is about 1299.9764577591.

The spelling of 2196880643 in words is "two billion, one hundred ninety-six million, eight hundred eighty thousand, six hundred forty-three".