75918434089 has 9 divisors (see below), whose sum is σ = 76224122397. Its totient is φ = 75613970124.

The previous prime is 75918434087. The next prime is 75918434099. The reversal of 75918434089 is 98043481957.

The square root of 75918434089 is 275533.

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

It is not a de Polignac number, because 75918434089 - 2¹ = 75918434087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75918434087) 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, 104426644 + ... + 104427370.

It is an arithmetic number, because the mean of its divisors is an integer number (8469346933).

Almost surely, 2^75918434089 is an apocalyptic number.

75918434089 is the 275533-rd square number.

75918434089 is the 137767-th centered octagonal number.

It is an amenable number.

75918434089 is a deficient number, since it is larger than the sum of its proper divisors (305688308).

75918434089 is an frugal number, since it uses more digits than its factorization.

75918434089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 75918434089 in words is "seventy-five billion, nine hundred eighteen million, four hundred thirty-four thousand, eighty-nine".