28669490262 has 36 divisors (see below), whose sum is σ = 72258819516. Its totient is φ = 8191282680.

The previous prime is 28669490257. The next prime is 28669490273. The reversal of 28669490262 is 26209496682.

It is a happy number.

28669490262 is a `hidden beast` number, since 286 + 69 + 49 + 0 + 262 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28669490199 and 28669490208.

It is a congruent 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 17 ways as a sum of consecutive naturals, for example, 16251664 + ... + 16253427.

It is an arithmetic number, because the mean of its divisors is an integer number (2007189431).

Almost surely, 2^28669490262 is an apocalyptic number.

28669490262 is an abundant number, since it is smaller than the sum of its proper divisors (43589329254).

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

28669490262 is a wasteful number, since it uses less digits than its factorization.

28669490262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32505113 (or 32505103 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 28669490262 in words is "twenty-eight billion, six hundred sixty-nine million, four hundred ninety thousand, two hundred sixty-two".