75125327887 has 4 divisors (see below), whose sum is σ = 75456276696. Its totient is φ = 74794379080.

The previous prime is 75125327813. The next prime is 75125327909. The reversal of 75125327887 is 78872352157.

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-75125327887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75125327807) 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, 165474064 + ... + 165474517.

It is an arithmetic number, because the mean of its divisors is an integer number (18864069174).

Almost surely, 2^75125327887 is an apocalyptic number.

75125327887 is a deficient number, since it is larger than the sum of its proper divisors (330948809).

75125327887 is a wasteful number, since it uses less digits than its factorization.

75125327887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330948808.

The product of its digits is 6585600, while the sum is 55.

The spelling of 75125327887 in words is "seventy-five billion, one hundred twenty-five million, three hundred twenty-seven thousand, eight hundred eighty-seven".