20489929110 has 96 divisors (see below), whose sum is σ = 60906673152. Its totient is φ = 4681696320.

The previous prime is 20489929087. The next prime is 20489929127. The reversal of 20489929110 is 1192998402.

20489929110 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2661687 + ... + 2669373.

It is an arithmetic number, because the mean of its divisors is an integer number (634444512).

Almost surely, 2^20489929110 is an apocalyptic number.

20489929110 is an abundant number, since it is smaller than the sum of its proper divisors (40416744042).

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

20489929110 is a wasteful number, since it uses less digits than its factorization.

20489929110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938 (or 11935 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 20489929110 in words is "twenty billion, four hundred eighty-nine million, nine hundred twenty-nine thousand, one hundred ten".