13788427392 has 128 divisors (see below), whose sum is σ = 41115547200. Its totient is φ = 4548648960.

The previous prime is 13788427351. The next prime is 13788427421. The reversal of 13788427392 is 29372488731.

13788427392 is a `hidden beast` number, since 137 + 88 + 42 + 7 + 392 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 314667 + ... + 355797.

Almost surely, 2^13788427392 is an apocalyptic number.

13788427392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13788427392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20557773600).

13788427392 is an abundant number, since it is smaller than the sum of its proper divisors (27327119808).

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

13788427392 is an equidigital number, since it uses as much as digits as its factorization.

13788427392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41251 (or 41233 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 13788427392 in words is "thirteen billion, seven hundred eighty-eight million, four hundred twenty-seven thousand, three hundred ninety-two".