20828022286 has 4 divisors (see below), whose sum is σ = 31242033432. Its totient is φ = 10414011142.

The previous prime is 20828022251. The next prime is 20828022287. The reversal of 20828022286 is 68222082802.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20828022286² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20828022287) 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 as a sum of consecutive naturals, namely, 5207005570 + ... + 5207005573.

It is an arithmetic number, because the mean of its divisors is an integer number (7810508358).

Almost surely, 2^20828022286 is an apocalyptic number.

20828022286 is a deficient number, since it is larger than the sum of its proper divisors (10414011146).

20828022286 is a wasteful number, since it uses less digits than its factorization.

20828022286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414011145.

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 20828022286 in words is "twenty billion, eight hundred twenty-eight million, twenty-two thousand, two hundred eighty-six".