75309398486745 has 32 divisors (see below), whose sum is σ = 122927223628800. Its totient is φ = 39362271320064.

The previous prime is 75309398486711. The next prime is 75309398486753. The reversal of 75309398486745 is 54768489390357.

It is not a de Polignac number, because 75309398486745 - 2¹⁶ = 75309398421209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249457705 + ... + 249759414.

It is an arithmetic number, because the mean of its divisors is an integer number (3841475738400).

Almost surely, 2^{75309398486745} is an apocalyptic number.

It is an amenable number.

75309398486745 is a deficient number, since it is larger than the sum of its proper divisors (47617825142055).

75309398486745 is a wasteful number, since it uses less digits than its factorization.

75309398486745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499217329.

The product of its (nonzero) digits is 5486745600, while the sum is 78.

The spelling of 75309398486745 in words is "seventy-five trillion, three hundred nine billion, three hundred ninety-eight million, four hundred eighty-six thousand, seven hundred forty-five".