20294109800 has 96 divisors (see below), whose sum is σ = 49293273600. Its totient is φ = 7755559680.

The previous prime is 20294109799. The next prime is 20294109809. The reversal of 20294109800 is 890149202.

It is not an unprimeable number, because it can be changed into a prime (20294109809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4915337 + ... + 4919463.

It is an arithmetic number, because the mean of its divisors is an integer number (513471600).

Almost surely, 2^20294109800 is an apocalyptic number.

20294109800 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 20294109800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24646636800).

20294109800 is an abundant number, since it is smaller than the sum of its proper divisors (28999163800).

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

20294109800 is a wasteful number, since it uses less digits than its factorization.

20294109800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235 (or 5226 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 20294109800 in words is "twenty billion, two hundred ninety-four million, one hundred nine thousand, eight hundred".