13861398765 has 8 divisors (see below), whose sum is σ = 22178238048. Its totient is φ = 7392746000.

The previous prime is 13861398731. The next prime is 13861398769. The reversal of 13861398765 is 56789316831.

13861398765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13861398765 - 2⁷ = 13861398637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861398769) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 462046611 + ... + 462046640.

It is an arithmetic number, because the mean of its divisors is an integer number (2772279756).

Almost surely, 2^13861398765 is an apocalyptic number.

13861398765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13861398765 is a deficient number, since it is larger than the sum of its proper divisors (8316839283).

13861398765 is an equidigital number, since it uses as much as digits as its factorization.

13861398765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924093259.

The product of its digits is 6531840, while the sum is 57.

The spelling of 13861398765 in words is "thirteen billion, eight hundred sixty-one million, three hundred ninety-eight thousand, seven hundred sixty-five".