2150918568 has 48 divisors (see below), whose sum is σ = 5857624500. Its totient is φ = 713007360.

The previous prime is 2150918563. The next prime is 2150918569. The reversal of 2150918568 is 8658190512.

It is a happy number.

2150918568 is a `hidden beast` number, since 2 + 1 + 509 + 1 + 85 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2149435044 + 1483524 = 46362^2 + 1218^2 .

It is not an unprimeable number, because it can be changed into a prime (2150918563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69493 + ... + 95556.

Almost surely, 2^2150918568 is an apocalyptic number.

It is an amenable number.

2150918568 is an abundant number, since it is smaller than the sum of its proper divisors (3706705932).

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

2150918568 is a wasteful number, since it uses less digits than its factorization.

2150918568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165242 (or 165235 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The square root of 2150918568 is about 46377.9965932122. The cubic root of 2150918568 is about 1290.8466625067.

The spelling of 2150918568 in words is "two billion, one hundred fifty million, nine hundred eighteen thousand, five hundred sixty-eight".