10191885908 has 24 divisors (see below), whose sum is σ = 18115108200. Its totient is φ = 5016642048.

The previous prime is 10191885887. The next prime is 10191885941. The reversal of 10191885908 is 80958819101.

It can be written as a sum of positive squares in 4 ways, for example, as 420168004 + 9771717904 = 20498^2 + 98852^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19016 + ... + 144032.

It is an arithmetic number, because the mean of its divisors is an integer number (754796175).

Almost surely, 2^10191885908 is an apocalyptic number.

It is an amenable number.

10191885908 is a deficient number, since it is larger than the sum of its proper divisors (7923222292).

10191885908 is a wasteful number, since it uses less digits than its factorization.

10191885908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125339 (or 125337 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 50.

The spelling of 10191885908 in words is "ten billion, one hundred ninety-one million, eight hundred eighty-five thousand, nine hundred eight".