13863091850 has 24 divisors (see below), whose sum is σ = 26674503660. Its totient is φ = 5354021120.

The previous prime is 13863091843. The next prime is 13863091859. The reversal of 13863091850 is 5819036831.

It can be written as a sum of positive squares in 6 ways, for example, as 10345534369 + 3517557481 = 101713^2 + 59309^2 .

It is not an unprimeable number, because it can be changed into a prime (13863091859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4778927 + ... + 4781826.

Almost surely, 2^13863091850 is an apocalyptic number.

13863091850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13863091850 is a deficient number, since it is larger than the sum of its proper divisors (12811411810).

13863091850 is a wasteful number, since it uses less digits than its factorization.

13863091850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560794 (or 9560789 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 13863091850 in words is "thirteen billion, eight hundred sixty-three million, ninety-one thousand, eight hundred fifty".