12749740547827 has 2 divisors, whose sum is σ = 12749740547828. Its totient is φ = 12749740547826.

The previous prime is 12749740547779. The next prime is 12749740547833. The reversal of 12749740547827 is 72874504794721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12749740547827 is a prime.

It is a super-3 number, since 3×12749740547827³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12749740517827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6374870273913 + 6374870273914.

It is an arithmetic number, because the mean of its divisors is an integer number (6374870273914).

Almost surely, 2^{12749740547827} is an apocalyptic number.

12749740547827 is a deficient number, since it is larger than the sum of its proper divisors (1).

12749740547827 is an equidigital number, since it uses as much as digits as its factorization.

12749740547827 is an evil number, because the sum of its binary digits is even.

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

The spelling of 12749740547827 in words is "twelve trillion, seven hundred forty-nine billion, seven hundred forty million, five hundred forty-seven thousand, eight hundred twenty-seven".