2150544865 has 16 divisors (see below), whose sum is σ = 3044459520. Its totient is φ = 1427088960.

The previous prime is 2150544841. The next prime is 2150544871. The reversal of 2150544865 is 5684450512.

It is not a de Polignac number, because 2150544865 - 2¹⁵ = 2150512097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989950 + ... + 992119.

It is an arithmetic number, because the mean of its divisors is an integer number (190278720).

Almost surely, 2^2150544865 is an apocalyptic number.

It is an amenable number.

2150544865 is a deficient number, since it is larger than the sum of its proper divisors (893914655).

2150544865 is a wasteful number, since it uses less digits than its factorization.

2150544865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982112.

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 2150544865 is about 46373.9675356767. The cubic root of 2150544865 is about 1290.7719004621.

The spelling of 2150544865 in words is "two billion, one hundred fifty million, five hundred forty-four thousand, eight hundred sixty-five".