14138891639 has 4 divisors (see below), whose sum is σ = 14297755680. Its totient is φ = 13980027600.

The previous prime is 14138891633. The next prime is 14138891651. The reversal of 14138891639 is 93619883141.

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 14138891639 - 2¹⁶ = 14138826103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14138891633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79431887 + ... + 79432064.

It is an arithmetic number, because the mean of its divisors is an integer number (3574438920).

Almost surely, 2^14138891639 is an apocalyptic number.

14138891639 is a deficient number, since it is larger than the sum of its proper divisors (158864041).

14138891639 is an equidigital number, since it uses as much as digits as its factorization.

14138891639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158864040.

The product of its digits is 1119744, while the sum is 53.

The spelling of 14138891639 in words is "fourteen billion, one hundred thirty-eight million, eight hundred ninety-one thousand, six hundred thirty-nine".