28765896486 has 36 divisors (see below), whose sum is σ = 61130096652. Its totient is φ = 9022379264.

The previous prime is 28765896461. The next prime is 28765896487. The reversal of 28765896486 is 68469856782.

It is a self number, because there is not a number n which added to its sum of digits gives 28765896486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28765896487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7060546 + ... + 7064618.

Almost surely, 2^28765896486 is an apocalyptic number.

28765896486 is an abundant number, since it is smaller than the sum of its proper divisors (32364200166).

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

28765896486 is an frugal number, since it uses more digits than its factorization.

28765896486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185 (or 4095 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 69.

The spelling of 28765896486 in words is "twenty-eight billion, seven hundred sixty-five million, eight hundred ninety-six thousand, four hundred eighty-six".