13888822215 has 16 divisors (see below), whose sum is σ = 22224224736. Its totient is φ = 7406668800.

The previous prime is 13888822177. The next prime is 13888822223. The reversal of 13888822215 is 51222888831.

It is not a de Polignac number, because 13888822215 - 2⁹ = 13888821703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145795 + ... + 221435.

It is an arithmetic number, because the mean of its divisors is an integer number (1389014046).

Almost surely, 2^13888822215 is an apocalyptic number.

13888822215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13888822215 is a deficient number, since it is larger than the sum of its proper divisors (8335402521).

13888822215 is a wasteful number, since it uses less digits than its factorization.

13888822215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87890.

The product of its digits is 491520, while the sum is 48.

The spelling of 13888822215 in words is "thirteen billion, eight hundred eighty-eight million, eight hundred twenty-two thousand, two hundred fifteen".