20889098802 has 64 divisors (see below), whose sum is σ = 54535662720. Its totient is φ = 5843102400.

The previous prime is 20889098771. The next prime is 20889098803.

20889098802 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (20889098803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1344849 + ... + 1360292.

It is an arithmetic number, because the mean of its divisors is an integer number (852119730).

Almost surely, 2^20889098802 is an apocalyptic number.

20889098802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20889098802 is an abundant number, since it is smaller than the sum of its proper divisors (33646563918).

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

20889098802 is a wasteful number, since it uses less digits than its factorization.

20889098802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705176 (or 2705170 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 20889098802 in words is "twenty billion, eight hundred eighty-nine million, ninety-eight thousand, eight hundred two".