13004440491 has 16 divisors (see below), whose sum is σ = 19855238400. Its totient is φ = 7416503328.

The previous prime is 13004440483. The next prime is 13004440499. The reversal of 13004440491 is 19404440031.

It is an interprime number because it is at equal distance from previous prime (13004440483) and next prime (13004440499).

It is not a de Polignac number, because 13004440491 - 2³ = 13004440483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13004440499) 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 15 ways as a sum of consecutive naturals, for example, 597621 + ... + 618998.

It is an arithmetic number, because the mean of its divisors is an integer number (1240952400).

Almost surely, 2^13004440491 is an apocalyptic number.

13004440491 is a deficient number, since it is larger than the sum of its proper divisors (6850797909).

13004440491 is a wasteful number, since it uses less digits than its factorization.

13004440491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217138.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 13004440491 in words is "thirteen billion, four million, four hundred forty thousand, four hundred ninety-one".