13263646362512 has 80 divisors (see below), whose sum is σ = 31941850924032. Its totient is φ = 5195204697600.

The previous prime is 13263646362469. The next prime is 13263646362517. The reversal of 13263646362512 is 21526364636231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13263646362517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44950208 + ... + 45244319.

Almost surely, 2^{13263646362512} is an apocalyptic number.

It is an amenable number.

13263646362512 is an abundant number, since it is smaller than the sum of its proper divisors (18678204561520).

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

13263646362512 is a wasteful number, since it uses less digits than its factorization.

13263646362512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90194656 (or 90194650 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 50.

The spelling of 13263646362512 in words is "thirteen trillion, two hundred sixty-three billion, six hundred forty-six million, three hundred sixty-two thousand, five hundred twelve".