13085921494 has 4 divisors (see below), whose sum is σ = 19628882244. Its totient is φ = 6542960746.

The previous prime is 13085921477. The next prime is 13085921521. The reversal of 13085921494 is 49412958031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49412958031 = 112121 ⋅440711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271480372 + ... + 3271480375.

It is an arithmetic number, because the mean of its divisors is an integer number (4907220561).

Almost surely, 2^13085921494 is an apocalyptic number.

13085921494 is a deficient number, since it is larger than the sum of its proper divisors (6542960750).

13085921494 is an equidigital number, since it uses as much as digits as its factorization.

13085921494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542960749.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 13085921494 in words is "thirteen billion, eighty-five million, nine hundred twenty-one thousand, four hundred ninety-four".