28653687076 has 81 divisors (see below), whose sum is σ = 59406643569. Its totient is φ = 12057725568.

The previous prime is 28653687071. The next prime is 28653687079. The reversal of 28653687076 is 67078635682.

The square root of 28653687076 is 169274.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 504900900 + 28148786176 = 22470^2 + 167776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28653687076.

It is not an unprimeable number, because it can be changed into a prime (28653687071) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 253572396 + ... + 253572508.

Almost surely, 2^28653687076 is an apocalyptic number.

28653687076 is the 169274-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28653687076

28653687076 is an abundant number, since it is smaller than the sum of its proper divisors (30752956493).

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

28653687076 is a wasteful number, since it uses less digits than its factorization.

28653687076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 28653687076 in words is "twenty-eight billion, six hundred fifty-three million, six hundred eighty-seven thousand, seventy-six".