28251362684 has 12 divisors (see below), whose sum is σ = 49655781000. Its totient is φ = 14063996688.

The previous prime is 28251362677. The next prime is 28251362701. The reversal of 28251362684 is 48626315282.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15420134 + ... + 15421965.

It is an arithmetic number, because the mean of its divisors is an integer number (4137981750).

Almost surely, 2^28251362684 is an apocalyptic number.

It is an amenable number.

28251362684 is a deficient number, since it is larger than the sum of its proper divisors (21404418316).

28251362684 is a wasteful number, since it uses less digits than its factorization.

28251362684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30842332 (or 30842330 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The spelling of 28251362684 in words is "twenty-eight billion, two hundred fifty-one million, three hundred sixty-two thousand, six hundred eighty-four".