28826008206642 has 12 divisors (see below), whose sum is σ = 62456351114430. Its totient is φ = 9608669402208.

The previous prime is 28826008206637. The next prime is 28826008206643. The reversal of 28826008206642 is 24660280062882.

28826008206642 is a `hidden beast` number, since 2 + 8 + 8 + 2 + 600 + 8 + 20 + 6 + 6 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23454464966361 + 5371543240281 = 4842981^2 + 2317659^2 .

It is not an unprimeable number, because it can be changed into a prime (28826008206643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 800722450167 + ... + 800722450202.

Almost surely, 2^{28826008206642} is an apocalyptic number.

28826008206642 is an abundant number, since it is smaller than the sum of its proper divisors (33630342907788).

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

28826008206642 is a wasteful number, since it uses less digits than its factorization.

28826008206642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601444900377 (or 1601444900374 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 28826008206642 in words is "twenty-eight trillion, eight hundred twenty-six billion, eight million, two hundred six thousand, six hundred forty-two".