13639353974 has 4 divisors (see below), whose sum is σ = 20459030964. Its totient is φ = 6819676986.

The previous prime is 13639353971. The next prime is 13639353977. The reversal of 13639353974 is 47935393631.

13639353974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47935393631 = 107 ⋅447994333.

It is an interprime number because it is at equal distance from previous prime (13639353971) and next prime (13639353977).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13639353971) 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, 3409838492 + ... + 3409838495.

It is an arithmetic number, because the mean of its divisors is an integer number (5114757741).

Almost surely, 2^13639353974 is an apocalyptic number.

13639353974 is a deficient number, since it is larger than the sum of its proper divisors (6819676990).

13639353974 is an equidigital number, since it uses as much as digits as its factorization.

13639353974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819676989.

The product of its digits is 5511240, while the sum is 53.

The spelling of 13639353974 in words is "thirteen billion, six hundred thirty-nine million, three hundred fifty-three thousand, nine hundred seventy-four".