28269482680 has 16 divisors (see below), whose sum is σ = 63606336120. Its totient is φ = 11307793056.

The previous prime is 28269482639. The next prime is 28269482719. The reversal of 28269482680 is 8628496282.

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, 353368494 + ... + 353368573.

Almost surely, 2^28269482680 is an apocalyptic number.

28269482680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28269482680 is an abundant number, since it is smaller than the sum of its proper divisors (35336853440).

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

28269482680 is a wasteful number, since it uses less digits than its factorization.

28269482680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706737078 (or 706737074 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 28269482680 in words is "twenty-eight billion, two hundred sixty-nine million, four hundred eighty-two thousand, six hundred eighty".