20373689880 has 192 divisors, whose sum is σ = 67265976960. Its totient is φ = 5347344384.

The previous prime is 20373689867. The next prime is 20373689887. The reversal of 20373689880 is 8898637302.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20373689887) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6738049 + ... + 6741071.

It is an arithmetic number, because the mean of its divisors is an integer number (350343630).

Almost surely, 2^20373689880 is an apocalyptic number.

20373689880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20373689880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33632988480).

20373689880 is an abundant number, since it is smaller than the sum of its proper divisors (46892287080).

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

20373689880 is a wasteful number, since it uses less digits than its factorization.

20373689880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 20373689880 in words is "twenty billion, three hundred seventy-three million, six hundred eighty-nine thousand, eight hundred eighty".