13491955019 has 2 divisors, whose sum is σ = 13491955020. Its totient is φ = 13491955018.

The previous prime is 13491954991. The next prime is 13491955027. The reversal of 13491955019 is 91055919431.

13491955019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13491955019 - 2²⁸ = 13223519563 is a prime.

It is a super-2 number, since 2×13491955019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13491955049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6745977509 + 6745977510.

It is an arithmetic number, because the mean of its divisors is an integer number (6745977510).

Almost surely, 2^13491955019 is an apocalyptic number.

13491955019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13491955019 is an equidigital number, since it uses as much as digits as its factorization.

13491955019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 47.

The spelling of 13491955019 in words is "thirteen billion, four hundred ninety-one million, nine hundred fifty-five thousand, nineteen".