28288785486 has 32 divisors (see below), whose sum is σ = 61161408000. Its totient is φ = 8671139424.

The previous prime is 28288785463. The next prime is 28288785487. The reversal of 28288785486 is 68458788282.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28288785487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668986 + ... + 710013.

It is an arithmetic number, because the mean of its divisors is an integer number (1911294000).

Almost surely, 2^28288785486 is an apocalyptic number.

28288785486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28288785486 is an abundant number, since it is smaller than the sum of its proper divisors (32872622514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28288785486 is a wasteful number, since it uses less digits than its factorization.

28288785486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379280.

The product of its digits is 110100480, while the sum is 66.

The spelling of 28288785486 in words is "twenty-eight billion, two hundred eighty-eight million, seven hundred eighty-five thousand, four hundred eighty-six".