10191819290 has 16 divisors (see below), whose sum is σ = 18355771368. Its totient is φ = 4074395136.

The previous prime is 10191819263. The next prime is 10191819301. The reversal of 10191819290 is 9291819101.

It can be written as a sum of positive squares in 4 ways, for example, as 2909415721 + 7282403569 = 53939^2 + 85337^2 .

It is a super-2 number, since 2×10191819290² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273167 + ... + 308226.

Almost surely, 2^10191819290 is an apocalyptic number.

10191819290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10191819290 is a deficient number, since it is larger than the sum of its proper divisors (8163952078).

10191819290 is a wasteful number, since it uses less digits than its factorization.

10191819290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583153.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 10191819290 in words is "ten billion, one hundred ninety-one million, eight hundred nineteen thousand, two hundred ninety".