5181306732 has 72 divisors (see below), whose sum is σ = 15076006400. Its totient is φ = 1469713248.

The previous prime is 5181306731. The next prime is 5181306769. The reversal of 5181306732 is 2376031815.

5181306732 is a `hidden beast` number, since 518 + 130 + 6 + 7 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5181306731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38932 + ... + 108987.

Almost surely, 2^5181306732 is an apocalyptic number.

It is an amenable number.

5181306732 is an abundant number, since it is smaller than the sum of its proper divisors (9894699668).

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

5181306732 is a wasteful number, since it uses less digits than its factorization.

5181306732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148075 (or 148070 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 5181306732 is about 71981.2943201218. The cubic root of 5181306732 is about 1730.3997129571.

The spelling of 5181306732 in words is "five billion, one hundred eighty-one million, three hundred six thousand, seven hundred thirty-two".