75807720506 has 32 divisors (see below), whose sum is σ = 130729075200. Its totient is φ = 32296320000.

The previous prime is 75807720487. The next prime is 75807720517. The reversal of 75807720506 is 60502770857.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 1681256 + ... + 1725756.

It is an arithmetic number, because the mean of its divisors is an integer number (4085283600).

Almost surely, 2^75807720506 is an apocalyptic number.

75807720506 is a deficient number, since it is larger than the sum of its proper divisors (54921354694).

75807720506 is a wasteful number, since it uses less digits than its factorization.

75807720506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45230.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 75807720506 in words is "seventy-five billion, eight hundred seven million, seven hundred twenty thousand, five hundred six".