5815732320 has 72 divisors (see below), whose sum is σ = 19846191456. Its totient is φ = 1550861568.

The previous prime is 5815732313. The next prime is 5815732379. The reversal of 5815732320 is 232375185.

It is a happy number.

5815732320 is a `hidden beast` number, since 5 + 81 + 573 + 2 + 3 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2017912 + ... + 2020791.

It is an arithmetic number, because the mean of its divisors is an integer number (275641548).

Almost surely, 2^5815732320 is an apocalyptic number.

It is an amenable number.

5815732320 is an abundant number, since it is smaller than the sum of its proper divisors (14030459136).

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

5815732320 is a wasteful number, since it uses less digits than its factorization.

5815732320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038724 (or 4038713 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 5815732320 is about 76260.9488532630. The cubic root of 5815732320 is about 1798.3248118232.

The spelling of 5815732320 in words is "five billion, eight hundred fifteen million, seven hundred thirty-two thousand, three hundred twenty".