20008607912 has 32 divisors (see below), whose sum is σ = 40472476200. Its totient is φ = 9238155264.

The previous prime is 20008607911. The next prime is 20008607923. The reversal of 20008607912 is 21970680002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19581524356 + 427083556 = 139934^2 + 20666^2 .

It is a super-2 number, since 2×20008607912² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20008607911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380737 + ... + 1395152.

Almost surely, 2^20008607912 is an apocalyptic number.

It is an amenable number.

20008607912 is an abundant number, since it is smaller than the sum of its proper divisors (20463868288).

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

20008607912 is a wasteful number, since it uses less digits than its factorization.

20008607912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775965 (or 2775961 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 20008607912 in words is "twenty billion, eight million, six hundred seven thousand, nine hundred twelve".