2164628259 has 16 divisors (see below), whose sum is σ = 3232112640. Its totient is φ = 1431720360.

The previous prime is 2164628231. The next prime is 2164628273. The reversal of 2164628259 is 9528264612.

2164628259 is a `hidden beast` number, since 2 + 16 + 4 + 628 + 2 + 5 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2164628259 is a prime.

It is a super-2 number, since 2×2164628259² = 9371230999322742162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2164628659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312207 + ... + 319064.

It is an arithmetic number, because the mean of its divisors is an integer number (202007040).

Almost surely, 2^2164628259 is an apocalyptic number.

2164628259 is a deficient number, since it is larger than the sum of its proper divisors (1067484381).

2164628259 is a wasteful number, since it uses less digits than its factorization.

2164628259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631407 (or 631401 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2164628259 is about 46525.5656494362. The cubic root of 2164628259 is about 1293.5834221994.

The spelling of 2164628259 in words is "two billion, one hundred sixty-four million, six hundred twenty-eight thousand, two hundred fifty-nine".