28649894682 has 16 divisors (see below), whose sum is σ = 57990149280. Its totient is φ = 9434904912.

The previous prime is 28649894677. The next prime is 28649894699.

28649894682 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28649894682² (a number of 22 digits) contains 22 as substring.

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, 28764457 + ... + 28765452.

It is an arithmetic number, because the mean of its divisors is an integer number (3624384330).

Almost surely, 2^28649894682 is an apocalyptic number.

28649894682 is an abundant number, since it is smaller than the sum of its proper divisors (29340254598).

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

28649894682 is a wasteful number, since it uses less digits than its factorization.

28649894682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57529997.

The product of its digits is 95551488, while the sum is 66.

The spelling of 28649894682 in words is "twenty-eight billion, six hundred forty-nine million, eight hundred ninety-four thousand, six hundred eighty-two".