12810630863440 has 80 divisors (see below), whose sum is σ = 29836663492032. Its totient is φ = 5115321946112.

The previous prime is 12810630863351. The next prime is 12810630863467. The reversal of 12810630863440 is 4436803601821.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12810630863440² (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 126116352 + ... + 126217888.

Almost surely, 2^{12810630863440} is an apocalyptic number.

12810630863440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12810630863440 is an abundant number, since it is smaller than the sum of its proper divisors (17026032628592).

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

12810630863440 is a wasteful number, since it uses less digits than its factorization.

12810630863440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104284 (or 104278 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 12810630863440 in words is "twelve trillion, eight hundred ten billion, six hundred thirty million, eight hundred sixty-three thousand, four hundred forty".