5208578730 has 48 divisors (see below), whose sum is σ = 13557383424. Its totient is φ = 1387407840.

The previous prime is 5208578723. The next prime is 5208578761. The reversal of 5208578730 is 378758025.

5208578730 is a `hidden beast` number, since 5 + 2 + 0 + 8 + 578 + 73 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50227 + ... + 113753.

It is an arithmetic number, because the mean of its divisors is an integer number (282445488).

Almost surely, 2^5208578730 is an apocalyptic number.

5208578730 is an abundant number, since it is smaller than the sum of its proper divisors (8348804694).

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

5208578730 is a wasteful number, since it uses less digits than its factorization.

5208578730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64451 (or 64448 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 5208578730 is about 72170.4837866562. The cubic root of 5208578730 is about 1733.4304092163.

The spelling of 5208578730 in words is "five billion, two hundred eight million, five hundred seventy-eight thousand, seven hundred thirty".