13018350850 has 24 divisors (see below), whose sum is σ = 25049105460. Its totient is φ = 5027776320.

The previous prime is 13018350847. The next prime is 13018350853. The reversal of 13018350850 is 5805381031.

It is an interprime number because it is at equal distance from previous prime (13018350847) and next prime (13018350853).

It can be written as a sum of positive squares in 6 ways, for example, as 8619079921 + 4399270929 = 92839^2 + 66327^2 .

It is not an unprimeable number, because it can be changed into a prime (13018350853) 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, 4487637 + ... + 4490536.

Almost surely, 2^13018350850 is an apocalyptic number.

13018350850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13018350850 is a deficient number, since it is larger than the sum of its proper divisors (12030754610).

13018350850 is a wasteful number, since it uses less digits than its factorization.

13018350850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978214 (or 8978209 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 13018350850 in words is "thirteen billion, eighteen million, three hundred fifty thousand, eight hundred fifty".