2564130186 has 12 divisors (see below), whose sum is σ = 5555615442. Its totient is φ = 854710056.

The previous prime is 2564130169. The next prime is 2564130251. The reversal of 2564130186 is 6810314652.

It is a happy number.

2564130186 is a `hidden beast` number, since 2 + 5 + 641 + 3 + 0 + 1 + 8 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2563498161 + 632025 = 50631^2 + 795^2 .

It is a super-2 number, since 2×2564130186² = 13149527221512789192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2564130186.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71225821 + ... + 71225856.

Almost surely, 2^2564130186 is an apocalyptic number.

2564130186 is an abundant number, since it is smaller than the sum of its proper divisors (2991485256).

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

2564130186 is a wasteful number, since it uses less digits than its factorization.

2564130186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142451685 (or 142451682 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2564130186 is about 50637.2410978323. The cubic root of 2564130186 is about 1368.7160410916.

The spelling of 2564130186 in words is "two billion, five hundred sixty-four million, one hundred thirty thousand, one hundred eighty-six".