13888890407 has 12 divisors (see below), whose sum is σ = 16351125336. Its totient is φ = 11761328880.

The previous prime is 13888890391. The next prime is 13888890409. The reversal of 13888890407 is 70409888831.

It is not a de Polignac number, because 13888890407 - 2⁴ = 13888890391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888890409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1703444 + ... + 1711577.

It is an arithmetic number, because the mean of its divisors is an integer number (1362593778).

Almost surely, 2^13888890407 is an apocalyptic number.

13888890407 is a deficient number, since it is larger than the sum of its proper divisors (2462234929).

13888890407 is an equidigital number, since it uses as much as digits as its factorization.

13888890407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415118 (or 3415111 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 13888890407 in words is "thirteen billion, eight hundred eighty-eight million, eight hundred ninety thousand, four hundred seven".