13888647023 has 4 divisors (see below), whose sum is σ = 14124047880. Its totient is φ = 13653246168.

The previous prime is 13888646983. The next prime is 13888647041. The reversal of 13888647023 is 32074688831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13888647023 - 2¹⁸ = 13888384879 is a prime.

It is a super-2 number, since 2×13888647023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888640023) 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, 117700340 + ... + 117700457.

It is an arithmetic number, because the mean of its divisors is an integer number (3531011970).

Almost surely, 2^13888647023 is an apocalyptic number.

13888647023 is a deficient number, since it is larger than the sum of its proper divisors (235400857).

13888647023 is an equidigital number, since it uses as much as digits as its factorization.

13888647023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235400856.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 13888647023 in words is "thirteen billion, eight hundred eighty-eight million, six hundred forty-seven thousand, twenty-three".