28695676812 has 96 divisors (see below), whose sum is σ = 74486490624. Its totient is φ = 8525568000.

The previous prime is 28695676787. The next prime is 28695676817. The reversal of 28695676812 is 21867659682.

It is not an unprimeable number, because it can be changed into a prime (28695676817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1362748 + ... + 1383644.

It is an arithmetic number, because the mean of its divisors is an integer number (775900944).

Almost surely, 2^28695676812 is an apocalyptic number.

28695676812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28695676812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37243245312).

28695676812 is an abundant number, since it is smaller than the sum of its proper divisors (45790813812).

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

28695676812 is a wasteful number, since it uses less digits than its factorization.

28695676812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21119 (or 21117 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

It can be divided in two parts, 28695 and 676812, that added together give a palindrome (705507).

The spelling of 28695676812 in words is "twenty-eight billion, six hundred ninety-five million, six hundred seventy-six thousand, eight hundred twelve".