75146931825289 has 9 divisors (see below), whose sum is σ = 76592018942229. Its totient is φ = 73728614412960.

The previous prime is 75146931825179. The next prime is 75146931825377. The reversal of 75146931825289 is 98252813964157.

The square root of 75146931825289 is 8668733.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1267887260025 + 73879044565264 = 1126005^2 + 8595292^2 .

It is not a de Polignac number, because 75146931825289 - 2²⁷ = 75146797607561 is a prime.

It is a super-2 number, since 2×75146931825289² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75146931825389) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 459361069 + ... + 459524629.

Almost surely, 2^{75146931825289} is an apocalyptic number.

75146931825289 is the 8668733-rd square number.

75146931825289 is the 4334367-th centered octagonal number.

It is an amenable number.

75146931825289 is a deficient number, since it is larger than the sum of its proper divisors (1445087116940).

75146931825289 is an frugal number, since it uses more digits than its factorization.

75146931825289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327228 (or 163614 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 70.

The spelling of 75146931825289 in words is "seventy-five trillion, one hundred forty-six billion, nine hundred thirty-one million, eight hundred twenty-five thousand, two hundred eighty-nine".