73187572228 has 24 divisors (see below), whose sum is σ = 129365832960. Its totient is φ = 36226015200.

The previous prime is 73187572181. The next prime is 73187572247. The reversal of 73187572228 is 82227578137.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606963 + ... + 4622821.

It is an arithmetic number, because the mean of its divisors is an integer number (5390243040).

Almost surely, 2^73187572228 is an apocalyptic number.

It is an amenable number.

73187572228 is a deficient number, since it is larger than the sum of its proper divisors (56178260732).

73187572228 is a wasteful number, since it uses less digits than its factorization.

73187572228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27387 (or 27385 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 52.

The spelling of 73187572228 in words is "seventy-three billion, one hundred eighty-seven million, five hundred seventy-two thousand, two hundred twenty-eight".