75338861557512 has 48 divisors (see below), whose sum is σ = 219097709634960. Its totient is φ = 21525389016096.

The previous prime is 75338861557489. The next prime is 75338861557613. The reversal of 75338861557512 is 21575516883357.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 32031827718 + ... + 32031830069.

It is an arithmetic number, because the mean of its divisors is an integer number (4564535617395).

Almost surely, 2^{75338861557512} is an apocalyptic number.

It is an amenable number.

75338861557512 is an abundant number, since it is smaller than the sum of its proper divisors (143758848077448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75338861557512 is a wasteful number, since it uses less digits than its factorization.

75338861557512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64063657810 (or 64063657799 counting only the distinct ones).

The product of its digits is 211680000, while the sum is 66.

The spelling of 75338861557512 in words is "seventy-five trillion, three hundred thirty-eight billion, eight hundred sixty-one million, five hundred fifty-seven thousand, five hundred twelve".