12749740547782 has 32 divisors (see below), whose sum is σ = 22142149585920. Its totient is φ = 5392866548160.

The previous prime is 12749740547779. The next prime is 12749740547827. The reversal of 12749740547782 is 28774504794721.

12749740547782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 501873 + ... + 5074579.

It is an arithmetic number, because the mean of its divisors is an integer number (691942174560).

Almost surely, 2^{12749740547782} is an apocalyptic number.

12749740547782 is a deficient number, since it is larger than the sum of its proper divisors (9392409038138).

12749740547782 is a wasteful number, since it uses less digits than its factorization.

12749740547782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575316.

The product of its (nonzero) digits is 221276160, while the sum is 67.

The spelling of 12749740547782 in words is "twelve trillion, seven hundred forty-nine billion, seven hundred forty million, five hundred forty-seven thousand, seven hundred eighty-two".