13750890639 has 4 divisors (see below), whose sum is σ = 18334520856. Its totient is φ = 9167260424.

The previous prime is 13750890611. The next prime is 13750890649. The reversal of 13750890639 is 93609805731.

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 13750890639 - 2⁷ = 13750890511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13750890591 and 13750890600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750890649) 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, 2291815104 + ... + 2291815109.

It is an arithmetic number, because the mean of its divisors is an integer number (4583630214).

Almost surely, 2^13750890639 is an apocalyptic number.

13750890639 is a deficient number, since it is larger than the sum of its proper divisors (4583630217).

13750890639 is an equidigital number, since it uses as much as digits as its factorization.

13750890639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583630216.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 13750890639 in words is "thirteen billion, seven hundred fifty million, eight hundred ninety thousand, six hundred thirty-nine".