75132291187 has 4 divisors (see below), whose sum is σ = 76964786136. Its totient is φ = 73299796240.

The previous prime is 75132291181. The next prime is 75132291239. The reversal of 75132291187 is 78119223157.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75132291187 is a prime.

It is a super-2 number, since 2×75132291187² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75132291181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916247413 + ... + 916247494.

It is an arithmetic number, because the mean of its divisors is an integer number (19241196534).

Almost surely, 2^75132291187 is an apocalyptic number.

75132291187 is a deficient number, since it is larger than the sum of its proper divisors (1832494949).

75132291187 is a wasteful number, since it uses less digits than its factorization.

75132291187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832494948.

The product of its digits is 211680, while the sum is 46.

The spelling of 75132291187 in words is "seventy-five billion, one hundred thirty-two million, two hundred ninety-one thousand, one hundred eighty-seven".