28698636106 has 16 divisors (see below), whose sum is σ = 50341794624. Its totient is φ = 12013382304.

The previous prime is 28698636091. The next prime is 28698636107. The reversal of 28698636106 is 60163689682.

It is a happy number.

It is a super-2 number, since 2×28698636106² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28698636107) by changing a digit.

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, 23835475 + ... + 23836678.

It is an arithmetic number, because the mean of its divisors is an integer number (3146362164).

Almost surely, 2^28698636106 is an apocalyptic number.

28698636106 is a deficient number, since it is larger than the sum of its proper divisors (21643158518).

28698636106 is a wasteful number, since it uses less digits than its factorization.

28698636106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47672205.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 28698636106 in words is "twenty-eight billion, six hundred ninety-eight million, six hundred thirty-six thousand, one hundred six".