75172652564 has 6 divisors (see below), whose sum is σ = 131552141994. Its totient is φ = 37586326280.

The previous prime is 75172652561. The next prime is 75172652579. The reversal of 75172652564 is 46525627157.

It can be written as a sum of positive squares in only one way, i.e., 72302907664 + 2869744900 = 268892^2 + 53570^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75172652561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9396581567 + ... + 9396581574.

It is an arithmetic number, because the mean of its divisors is an integer number (21925356999).

Almost surely, 2^75172652564 is an apocalyptic number.

It is an amenable number.

75172652564 is a deficient number, since it is larger than the sum of its proper divisors (56379489430).

75172652564 is a wasteful number, since it uses less digits than its factorization.

75172652564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18793163145 (or 18793163143 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 50.

The spelling of 75172652564 in words is "seventy-five billion, one hundred seventy-two million, six hundred fifty-two thousand, five hundred sixty-four".