13851780268 has 24 divisors (see below), whose sum is σ = 26782473312. Its totient is φ = 6235071744.

The previous prime is 13851780223. The next prime is 13851780269. The reversal of 13851780268 is 86208715831.

It is not an unprimeable number, because it can be changed into a prime (13851780269) 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, 4426755 + ... + 4429882.

It is an arithmetic number, because the mean of its divisors is an integer number (1115936388).

Almost surely, 2^13851780268 is an apocalyptic number.

It is an amenable number.

13851780268 is a deficient number, since it is larger than the sum of its proper divisors (12930693044).

13851780268 is a wasteful number, since it uses less digits than its factorization.

13851780268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856681 (or 8856679 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 13851780268 in words is "thirteen billion, eight hundred fifty-one million, seven hundred eighty thousand, two hundred sixty-eight".