13861779355 has 8 divisors (see below), whose sum is σ = 16687281312. Its totient is φ = 11053992768.

The previous prime is 13861779353. The next prime is 13861779431. The reversal of 13861779355 is 55397716831.

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

It is a cyclic number.

It is not a de Polignac number, because 13861779355 - 2¹ = 13861779353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13861779296 and 13861779305.

It is not an unprimeable number, because it can be changed into a prime (13861779353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4427119 + ... + 4430248.

It is an arithmetic number, because the mean of its divisors is an integer number (2085910164).

Almost surely, 2^13861779355 is an apocalyptic number.

13861779355 is a deficient number, since it is larger than the sum of its proper divisors (2825501957).

13861779355 is an equidigital number, since it uses as much as digits as its factorization.

13861779355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857685.

The product of its digits is 4762800, while the sum is 55.

The spelling of 13861779355 in words is "thirteen billion, eight hundred sixty-one million, seven hundred seventy-nine thousand, three hundred fifty-five".