20107489032 has 128 divisors (see below), whose sum is σ = 57843878400. Its totient is φ = 6467501376.

The previous prime is 20107488977. The next prime is 20107489037. The reversal of 20107489032 is 23098470102.

It is a super-2 number, since 2×20107489032² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20107489037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 757863 + ... + 783945.

It is an arithmetic number, because the mean of its divisors is an integer number (451905300).

Almost surely, 2^20107489032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20107489032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28921939200).

20107489032 is an abundant number, since it is smaller than the sum of its proper divisors (37736389368).

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

20107489032 is a wasteful number, since it uses less digits than its factorization.

20107489032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26224 (or 26214 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20107489032 in words is "twenty billion, one hundred seven million, four hundred eighty-nine thousand, thirty-two".