28164294680 has 16 divisors (see below), whose sum is σ = 63369663120. Its totient is φ = 11265717856.

The previous prime is 28164294677. The next prime is 28164294701. The reversal of 28164294680 is 8649246182.

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, 352053644 + ... + 352053723.

It is an arithmetic number, because the mean of its divisors is an integer number (3960603945).

Almost surely, 2^28164294680 is an apocalyptic number.

28164294680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28164294680 is an abundant number, since it is smaller than the sum of its proper divisors (35205368440).

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

28164294680 is a wasteful number, since it uses less digits than its factorization.

28164294680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704107378 (or 704107374 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 28164294680 in words is "twenty-eight billion, one hundred sixty-four million, two hundred ninety-four thousand, six hundred eighty".