5151644145 has 40 divisors (see below), whose sum is σ = 9239990760. Its totient is φ = 2745999360.

The previous prime is 5151644143. The next prime is 5151644153. The reversal of 5151644145 is 5414461515.

5151644145 is a `hidden beast` number, since 5 + 1 + 5 + 1 + 644 + 1 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1169024481 + 3982619664 = 34191^2 + 63108^2 .

It is not a de Polignac number, because 5151644145 - 2¹ = 5151644143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5151644143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1346335 + ... + 1350155.

It is an arithmetic number, because the mean of its divisors is an integer number (230999769).

Almost surely, 2^5151644145 is an apocalyptic number.

It is an amenable number.

5151644145 is a deficient number, since it is larger than the sum of its proper divisors (4088346615).

5151644145 is a wasteful number, since it uses less digits than its factorization.

5151644145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7167 (or 7158 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 5151644145 is about 71774.9548589200. The cubic root of 5151644145 is about 1727.0912557602.

The spelling of 5151644145 in words is "five billion, one hundred fifty-one million, six hundred forty-four thousand, one hundred forty-five".