2159890413 has 4 divisors (see below), whose sum is σ = 2879853888. Its totient is φ = 1439926940.

The previous prime is 2159890399. The next prime is 2159890487. The reversal of 2159890413 is 3140989512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2159890413 - 2²⁴ = 2143113197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159810413) 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, 359981733 + ... + 359981738.

It is an arithmetic number, because the mean of its divisors is an integer number (719963472).

Almost surely, 2^2159890413 is an apocalyptic number.

It is an amenable number.

2159890413 is a deficient number, since it is larger than the sum of its proper divisors (719963475).

2159890413 is an equidigital number, since it uses as much as digits as its factorization.

2159890413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719963474.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 2159890413 is about 46474.6211711295. The cubic root of 2159890413 is about 1292.6389527203.

The spelling of 2159890413 in words is "two billion, one hundred fifty-nine million, eight hundred ninety thousand, four hundred thirteen".