19812099110 has 32 divisors (see below), whose sum is σ = 36860810400. Its totient is φ = 7662792960.

The previous prime is 19812099071. The next prime is 19812099127. The reversal of 19812099110 is 1199021891.

It is a super-2 number, since 2×19812099110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239255 + ... + 311234.

It is an arithmetic number, because the mean of its divisors is an integer number (1151900325).

Almost surely, 2^19812099110 is an apocalyptic number.

19812099110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19812099110 is a deficient number, since it is larger than the sum of its proper divisors (17048711290).

19812099110 is a wasteful number, since it uses less digits than its factorization.

19812099110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550616.

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

The spelling of 19812099110 in words is "nineteen billion, eight hundred twelve million, ninety-nine thousand, one hundred ten".