7512638881312 has 24 divisors (see below), whose sum is σ = 14801964507792. Its totient is φ = 3753409800000.

The previous prime is 7512638881273. The next prime is 7512638881331. The reversal of 7512638881312 is 2131888362157.

It is a happy number.

It is a super-2 number, since 2×7512638881312² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90884314 + ... + 90966937.

It is an arithmetic number, because the mean of its divisors is an integer number (616748521158).

Almost surely, 2^{7512638881312} is an apocalyptic number.

It is an amenable number.

7512638881312 is a deficient number, since it is larger than the sum of its proper divisors (7289325626480).

7512638881312 is a wasteful number, since it uses less digits than its factorization.

7512638881312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181852552 (or 181852544 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The spelling of 7512638881312 in words is "seven trillion, five hundred twelve billion, six hundred thirty-eight million, eight hundred eighty-one thousand, three hundred twelve".