13778859888 has 80 divisors (see below), whose sum is σ = 41632057600. Its totient is φ = 4351216320.

The previous prime is 13778859863. The next prime is 13778859911. The reversal of 13778859888 is 88895887731.

13778859888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831148 + ... + 847563.

It is an arithmetic number, because the mean of its divisors is an integer number (520400720).

Almost surely, 2^13778859888 is an apocalyptic number.

13778859888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13778859888 is an abundant number, since it is smaller than the sum of its proper divisors (27853197712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13778859888 is a wasteful number, since it uses less digits than its factorization.

13778859888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678747 (or 1678735 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 72.

The spelling of 13778859888 in words is "thirteen billion, seven hundred seventy-eight million, eight hundred fifty-nine thousand, eight hundred eighty-eight".