13148544691 has 2 divisors, whose sum is σ = 13148544692. Its totient is φ = 13148544690.

The previous prime is 13148544667. The next prime is 13148544713. The reversal of 13148544691 is 19644584131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13148544691 is a prime.

It is not a weakly prime, because it can be changed into another prime (13148544091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6574272345 + 6574272346.

It is an arithmetic number, because the mean of its divisors is an integer number (6574272346).

Almost surely, 2^13148544691 is an apocalyptic number.

13148544691 is a deficient number, since it is larger than the sum of its proper divisors (1).

13148544691 is an equidigital number, since it uses as much as digits as its factorization.

13148544691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The spelling of 13148544691 in words is "thirteen billion, one hundred forty-eight million, five hundred forty-four thousand, six hundred ninety-one".