13191928727 has 2 divisors, whose sum is σ = 13191928728. Its totient is φ = 13191928726.

The previous prime is 13191928661. The next prime is 13191928807. The reversal of 13191928727 is 72782919131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13191928727 - 2⁸ = 13191928471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13191928327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6595964363 + 6595964364.

It is an arithmetic number, because the mean of its divisors is an integer number (6595964364).

Almost surely, 2^13191928727 is an apocalyptic number.

13191928727 is a deficient number, since it is larger than the sum of its proper divisors (1).

13191928727 is an equidigital number, since it uses as much as digits as its factorization.

13191928727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 50.

The spelling of 13191928727 in words is "thirteen billion, one hundred ninety-one million, nine hundred twenty-eight thousand, seven hundred twenty-seven".