20284698318 has 32 divisors (see below), whose sum is σ = 41559244800. Its totient is φ = 6598337760.

The previous prime is 20284698289. The next prime is 20284698347. The reversal of 20284698318 is 81389648202.

It is an interprime number because it is at equal distance from previous prime (20284698289) and next prime (20284698347).

It is a super-2 number, since 2×20284698318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171718 + ... + 264681.

It is an arithmetic number, because the mean of its divisors is an integer number (1298726400).

Almost surely, 2^20284698318 is an apocalyptic number.

20284698318 is an abundant number, since it is smaller than the sum of its proper divisors (21274546482).

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

20284698318 is a wasteful number, since it uses less digits than its factorization.

20284698318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436592.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 20284698318 in words is "twenty billion, two hundred eighty-four million, six hundred ninety-eight thousand, three hundred eighteen".