28426689698 has 16 divisors (see below), whose sum is σ = 46648188576. Its totient is φ = 12884615040.

The previous prime is 28426689677. The next prime is 28426689703. The reversal of 28426689698 is 89698662482.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1822436 + ... + 1837967.

It is an arithmetic number, because the mean of its divisors is an integer number (2915511786).

Almost surely, 2^28426689698 is an apocalyptic number.

28426689698 is a deficient number, since it is larger than the sum of its proper divisors (18221498878).

28426689698 is a wasteful number, since it uses less digits than its factorization.

28426689698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660769.

The product of its digits is 143327232, while the sum is 68.

The spelling of 28426689698 in words is "twenty-eight billion, four hundred twenty-six million, six hundred eighty-nine thousand, six hundred ninety-eight".