13490013491 has 4 divisors (see below), whose sum is σ = 13955186400. Its totient is φ = 13024840584.

The previous prime is 13490013487. The next prime is 13490013503. The reversal of 13490013491 is 19431009431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13490013491 - 2² = 13490013487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13490063491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232586411 + ... + 232586468.

It is an arithmetic number, because the mean of its divisors is an integer number (3488796600).

Almost surely, 2^13490013491 is an apocalyptic number.

13490013491 is a deficient number, since it is larger than the sum of its proper divisors (465172909).

13490013491 is an equidigital number, since it uses as much as digits as its factorization.

13490013491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465172908.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 13490013491 in words is "thirteen billion, four hundred ninety million, thirteen thousand, four hundred ninety-one".