75240403650564 has 72 divisors (see below), whose sum is σ = 186613358456448. Its totient is φ = 23589919342080.

The previous prime is 75240403650563. The next prime is 75240403650679. The reversal of 75240403650564 is 46505630404257.

It is a super-2 number, since 2×75240403650564² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (75240403650563) 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, 1362847 + ... + 12342534.

It is an arithmetic number, because the mean of its divisors is an integer number (2591852200784).

Almost surely, 2^{75240403650564} is an apocalyptic number.

It is an amenable number.

75240403650564 is an abundant number, since it is smaller than the sum of its proper divisors (111372954805884).

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

75240403650564 is a wasteful number, since it uses less digits than its factorization.

75240403650564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13707005 (or 13706986 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 51.

The spelling of 75240403650564 in words is "seventy-five trillion, two hundred forty billion, four hundred three million, six hundred fifty thousand, five hundred sixty-four".