2164890459 has 8 divisors (see below), whose sum is σ = 2915100432. Its totient is φ = 1428970400.

The previous prime is 2164890437. The next prime is 2164890463. The reversal of 2164890459 is 9540984612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2164890459 - 2⁷ = 2164890331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164897459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3572124 + ... + 3572729.

It is an arithmetic number, because the mean of its divisors is an integer number (364387554).

Almost surely, 2^2164890459 is an apocalyptic number.

2164890459 is a deficient number, since it is larger than the sum of its proper divisors (750209973).

2164890459 is a wasteful number, since it uses less digits than its factorization.

2164890459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144957.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 2164890459 is about 46528.3833697239. The cubic root of 2164890459 is about 1293.6356503942.

The spelling of 2164890459 in words is "two billion, one hundred sixty-four million, eight hundred ninety thousand, four hundred fifty-nine".