10191941850 has 24 divisors (see below), whose sum is σ = 25276016160. Its totient is φ = 2717851120.

The previous prime is 10191941831. The next prime is 10191941857. The reversal of 10191941850 is 5814919101.

It is a junction number, because it is equal to n+sod(n) for n = 10191941799 and 10191941808.

It is not an unprimeable number, because it can be changed into a prime (10191941857) 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, 33972990 + ... + 33973289.

It is an arithmetic number, because the mean of its divisors is an integer number (1053167340).

Almost surely, 2^10191941850 is an apocalyptic number.

10191941850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10191941850 is an abundant number, since it is smaller than the sum of its proper divisors (15084074310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10191941850 is a wasteful number, since it uses less digits than its factorization.

10191941850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67946294 (or 67946289 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 39.

The spelling of 10191941850 in words is "ten billion, one hundred ninety-one million, nine hundred forty-one thousand, eight hundred fifty".