20447464312522 has 64 divisors (see below), whose sum is σ = 34803120240000. Its totient is φ = 8931814748928.

The previous prime is 20447464312501. The next prime is 20447464312531. The reversal of 20447464312522 is 22521346474402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2942501104 + ... + 2942508052.

It is an arithmetic number, because the mean of its divisors is an integer number (543798753750).

Almost surely, 2^{20447464312522} is an apocalyptic number.

20447464312522 is a deficient number, since it is larger than the sum of its proper divisors (14355655927478).

20447464312522 is a wasteful number, since it uses less digits than its factorization.

20447464312522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11975.

The product of its (nonzero) digits is 2580480, while the sum is 46.

The spelling of 20447464312522 in words is "twenty trillion, four hundred forty-seven billion, four hundred sixty-four million, three hundred twelve thousand, five hundred twenty-two".