19920435110 has 32 divisors (see below), whose sum is σ = 36483905952. Its totient is φ = 7829095680.

The previous prime is 19920435103. The next prime is 19920435121. The reversal of 19920435110 is 1153402991.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 564197 + ... + 598463.

It is an arithmetic number, because the mean of its divisors is an integer number (1140122061).

Almost surely, 2^19920435110 is an apocalyptic number.

19920435110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19920435110 is a deficient number, since it is larger than the sum of its proper divisors (16563470842).

19920435110 is a wasteful number, since it uses less digits than its factorization.

19920435110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35288.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 19920435110 in words is "nineteen billion, nine hundred twenty million, four hundred thirty-five thousand, one hundred ten".