28606802004 has 72 divisors (see below), whose sum is σ = 78939282240. Its totient is φ = 8662809600.

The previous prime is 28606801999. The next prime is 28606802047. The reversal of 28606802004 is 40020860682.

28606802004 is a `hidden beast` number, since 28 + 606 + 8 + 0 + 20 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28606802004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574452 + ... + 622260.

It is an arithmetic number, because the mean of its divisors is an integer number (1096378920).

Almost surely, 2^28606802004 is an apocalyptic number.

It is an amenable number.

28606802004 is an abundant number, since it is smaller than the sum of its proper divisors (50332480236).

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

28606802004 is a wasteful number, since it uses less digits than its factorization.

28606802004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49341 (or 49336 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 28606802004 in words is "twenty-eight billion, six hundred six million, eight hundred two thousand, four".