75587331745 has 4 divisors (see below), whose sum is σ = 90704798100. Its totient is φ = 60469865392.

The previous prime is 75587331739. The next prime is 75587331769. The reversal of 75587331745 is 54713378557.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10521015184 + 65066316561 = 102572^2 + 255081^2 .

It is a cyclic number.

It is not a de Polignac number, because 75587331745 - 2²⁷ = 75453114017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7558733170 + ... + 7558733179.

It is an arithmetic number, because the mean of its divisors is an integer number (22676199525).

Almost surely, 2^75587331745 is an apocalyptic number.

It is an amenable number.

75587331745 is a deficient number, since it is larger than the sum of its proper divisors (15117466355).

75587331745 is a wasteful number, since it uses less digits than its factorization.

75587331745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15117466354.

The product of its digits is 12348000, while the sum is 55.

The spelling of 75587331745 in words is "seventy-five billion, five hundred eighty-seven million, three hundred thirty-one thousand, seven hundred forty-five".