20322319986 has 32 divisors (see below), whose sum is σ = 45668145600. Its totient is φ = 6697991520.

The previous prime is 20322319973. The next prime is 20322319987. The reversal of 20322319986 is 68991322302.

It is a happy number.

20322319986 is a `hidden beast` number, since 2 + 0 + 322 + 319 + 9 + 8 + 6 = 666.

It is a super-2 number, since 2×20322319986² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20322319987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109460 + ... + 2119071.

It is an arithmetic number, because the mean of its divisors is an integer number (1427129550).

Almost surely, 2^20322319986 is an apocalyptic number.

20322319986 is an abundant number, since it is smaller than the sum of its proper divisors (25345825614).

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

20322319986 is a wasteful number, since it uses less digits than its factorization.

20322319986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228631 (or 4228625 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 20322319986 in words is "twenty billion, three hundred twenty-two million, three hundred nineteen thousand, nine hundred eighty-six".