28613890289 has 12 divisors (see below), whose sum is σ = 31376598528. Its totient is φ = 26061979200.

The previous prime is 28613890267. The next prime is 28613890303. The reversal of 28613890289 is 98209831682.

It is not a de Polignac number, because 28613890289 - 2¹⁶ = 28613824753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28613890229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1587977 + ... + 1605894.

It is an arithmetic number, because the mean of its divisors is an integer number (2614716544).

Almost surely, 2^28613890289 is an apocalyptic number.

It is an amenable number.

28613890289 is a deficient number, since it is larger than the sum of its proper divisors (2762708239).

28613890289 is a wasteful number, since it uses less digits than its factorization.

28613890289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193936 (or 3193919 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 56.

The spelling of 28613890289 in words is "twenty-eight billion, six hundred thirteen million, eight hundred ninety thousand, two hundred eighty-nine".