5144513985 has 64 divisors (see below), whose sum is σ = 9912591360. Its totient is φ = 2516417280.

The previous prime is 5144513981. The next prime is 5144513987. The reversal of 5144513985 is 5893154415.

It is a happy number.

5144513985 is a `hidden beast` number, since 5 + 1 + 44 + 513 + 98 + 5 = 666.

It is not a de Polignac number, because 5144513985 - 2² = 5144513981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5144513985.

It is not an unprimeable number, because it can be changed into a prime (5144513981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 266200 + ... + 284870.

It is an arithmetic number, because the mean of its divisors is an integer number (154884240).

Almost surely, 2^5144513985 is an apocalyptic number.

It is an amenable number.

5144513985 is a deficient number, since it is larger than the sum of its proper divisors (4768077375).

5144513985 is a wasteful number, since it uses less digits than its factorization.

5144513985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18855 (or 18849 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 5144513985 is about 71725.2674097490. The cubic root of 5144513985 is about 1726.2940913145.

The spelling of 5144513985 in words is "five billion, one hundred forty-four million, five hundred thirteen thousand, nine hundred eighty-five".