28589670811 has 8 divisors (see below), whose sum is σ = 30794211504. Its totient is φ = 26385892320.

The previous prime is 28589670799. The next prime is 28589670817. The reversal of 28589670811 is 11807698582.

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 28589670811 - 2²³ = 28581282203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28589670817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111421 + ... + 263806.

It is an arithmetic number, because the mean of its divisors is an integer number (3849276438).

Almost surely, 2^28589670811 is an apocalyptic number.

28589670811 is a deficient number, since it is larger than the sum of its proper divisors (2204540693).

28589670811 is a wasteful number, since it uses less digits than its factorization.

28589670811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381101.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 28589670811 in words is "twenty-eight billion, five hundred eighty-nine million, six hundred seventy thousand, eight hundred eleven".