20820286802 has 8 divisors (see below), whose sum is σ = 35691920256. Its totient is φ = 8922980052.

The previous prime is 20820286787. The next prime is 20820286841. The reversal of 20820286802 is 20868202802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 743581658 + ... + 743581685.

It is an arithmetic number, because the mean of its divisors is an integer number (4461490032).

Almost surely, 2^20820286802 is an apocalyptic number.

20820286802 is a deficient number, since it is larger than the sum of its proper divisors (14871633454).

20820286802 is a wasteful number, since it uses less digits than its factorization.

20820286802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487163352.

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 20820286802 in words is "twenty billion, eight hundred twenty million, two hundred eighty-six thousand, eight hundred two".