20072447999 has 8 divisors (see below), whose sum is σ = 20188433520. Its totient is φ = 19956505600.

The previous prime is 20072447971. The next prime is 20072448001. The reversal of 20072447999 is 99974427002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20072447999 - 2²⁴ = 20055670783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20072447999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20072447939) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1644479 + ... + 1656639.

It is an arithmetic number, because the mean of its divisors is an integer number (2523554190).

Almost surely, 2^20072447999 is an apocalyptic number.

20072447999 is a deficient number, since it is larger than the sum of its proper divisors (115985521).

20072447999 is a wasteful number, since it uses less digits than its factorization.

20072447999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21561.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 20072447999 in words is "twenty billion, seventy-two million, four hundred forty-seven thousand, nine hundred ninety-nine".