13729139042 has 8 divisors (see below), whose sum is σ = 20594689500. Its totient is φ = 6864242544.

The previous prime is 13729138999. The next prime is 13729139059. The reversal of 13729139042 is 24093192731.

It can be written as a sum of positive squares in 2 ways, for example, as 11917870561 + 1811268481 = 109169^2 + 42559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 107117 + ... + 197312.

Almost surely, 2^13729139042 is an apocalyptic number.

13729139042 is a deficient number, since it is larger than the sum of its proper divisors (6865550458).

13729139042 is a wasteful number, since it uses less digits than its factorization.

13729139042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326980.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 13729139042 in words is "thirteen billion, seven hundred twenty-nine million, one hundred thirty-nine thousand, forty-two".