20448958287 has 8 divisors (see below), whose sum is σ = 27649296000. Its totient is φ = 13440629720.

The previous prime is 20448958273. The next prime is 20448958303. The reversal of 20448958287 is 78285984402.

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 20448958287 - 2²⁰ = 20447909711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20448958207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48002037 + ... + 48002462.

It is an arithmetic number, because the mean of its divisors is an integer number (3456162000).

Almost surely, 2^20448958287 is an apocalyptic number.

20448958287 is a deficient number, since it is larger than the sum of its proper divisors (7200337713).

20448958287 is an equidigital number, since it uses as much as digits as its factorization.

20448958287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96004573.

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 20448958287 in words is "twenty billion, four hundred forty-eight million, nine hundred fifty-eight thousand, two hundred eighty-seven".