20028860083 has 4 divisors (see below), whose sum is σ = 20175056280. Its totient is φ = 19882663888.

The previous prime is 20028860081. The next prime is 20028860087. The reversal of 20028860083 is 38006882002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20028860083 - 2¹ = 20028860081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20028860081) 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, 73097893 + ... + 73098166.

It is an arithmetic number, because the mean of its divisors is an integer number (5043764070).

Almost surely, 2^20028860083 is an apocalyptic number.

20028860083 is a deficient number, since it is larger than the sum of its proper divisors (146196197).

20028860083 is a wasteful number, since it uses less digits than its factorization.

20028860083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146196196.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 20028860083 in words is "twenty billion, twenty-eight million, eight hundred sixty thousand, eighty-three".