75249134228 has 24 divisors (see below), whose sum is σ = 136242331680. Its totient is φ = 36323048160.

The previous prime is 75249134183. The next prime is 75249134243. The reversal of 75249134228 is 82243194257.

It is a super-2 number, since 2×75249134228² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156523 + ... + 1219853.

It is an arithmetic number, because the mean of its divisors is an integer number (5676763820).

Almost surely, 2^75249134228 is an apocalyptic number.

It is an amenable number.

75249134228 is a deficient number, since it is larger than the sum of its proper divisors (60993197452).

75249134228 is a wasteful number, since it uses less digits than its factorization.

75249134228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73607 (or 73605 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The spelling of 75249134228 in words is "seventy-five billion, two hundred forty-nine million, one hundred thirty-four thousand, two hundred twenty-eight".