28826423834 has 8 divisors (see below), whose sum is σ = 46565761620. Its totient is φ = 13304503296.

The previous prime is 28826423831. The next prime is 28826423903. The reversal of 28826423834 is 43832462882.

It can be written as a sum of positive squares in 2 ways, for example, as 24562725625 + 4263698209 = 156725^2 + 65297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28826423834² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28826423831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554354279 + ... + 554354330.

Almost surely, 2^28826423834 is an apocalyptic number.

28826423834 is a deficient number, since it is larger than the sum of its proper divisors (17739337786).

28826423834 is a wasteful number, since it uses less digits than its factorization.

28826423834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108708624.

The product of its digits is 3538944, while the sum is 50.

The spelling of 28826423834 in words is "twenty-eight billion, eight hundred twenty-six million, four hundred twenty-three thousand, eight hundred thirty-four".