20028772486 has 8 divisors (see below), whose sum is σ = 30775918824. Its totient is φ = 9770132880.

The previous prime is 20028772481. The next prime is 20028772487. The reversal of 20028772486 is 68427782002.

20028772486 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20028772481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122126580 + ... + 122126743.

It is an arithmetic number, because the mean of its divisors is an integer number (3846989853).

Almost surely, 2^20028772486 is an apocalyptic number.

20028772486 is a deficient number, since it is larger than the sum of its proper divisors (10747146338).

20028772486 is a wasteful number, since it uses less digits than its factorization.

20028772486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244253366.

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 20028772486 in words is "twenty billion, twenty-eight million, seven hundred seventy-two thousand, four hundred eighty-six".