12756103511780 has 48 divisors (see below), whose sum is σ = 26899515417600. Its totient is φ = 5081191859328.

The previous prime is 12756103511771. The next prime is 12756103511791. The reversal of 12756103511780 is 8711530165721.

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, 6956021 + ... + 8596419.

It is an arithmetic number, because the mean of its divisors is an integer number (560406571200).

Almost surely, 2^{12756103511780} is an apocalyptic number.

12756103511780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12756103511780 is an abundant number, since it is smaller than the sum of its proper divisors (14143411905820).

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

12756103511780 is a wasteful number, since it uses less digits than its factorization.

12756103511780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642028 (or 1642026 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 12756103511780 in words is "twelve trillion, seven hundred fifty-six billion, one hundred three million, five hundred eleven thousand, seven hundred eighty".