13780028599 has 4 divisors (see below), whose sum is σ = 13780270080. Its totient is φ = 13779787120.

The previous prime is 13780028593. The next prime is 13780028641. The reversal of 13780028599 is 99582008731.

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

It is a cyclic number.

It is not a de Polignac number, because 13780028599 - 2¹³ = 13780020407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780028593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17994 + ... + 166984.

It is an arithmetic number, because the mean of its divisors is an integer number (3445067520).

Almost surely, 2^13780028599 is an apocalyptic number.

13780028599 is a deficient number, since it is larger than the sum of its proper divisors (241481).

13780028599 is an equidigital number, since it uses as much as digits as its factorization.

13780028599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241480.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 13780028599 in words is "thirteen billion, seven hundred eighty million, twenty-eight thousand, five hundred ninety-nine".