28279745819376 has 80 divisors (see below), whose sum is σ = 79552824067200. Its totient is φ = 8622499624704.

The previous prime is 28279745819333. The next prime is 28279745819383. The reversal of 28279745819376 is 67391854797282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534602746 + ... + 534655641.

It is an arithmetic number, because the mean of its divisors is an integer number (994410300840).

Almost surely, 2^{28279745819376} is an apocalyptic number.

It is an amenable number.

28279745819376 is an abundant number, since it is smaller than the sum of its proper divisors (51273078247824).

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

28279745819376 is a wasteful number, since it uses less digits than its factorization.

28279745819376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069258446 (or 1069258440 counting only the distinct ones).

The product of its digits is 2560481280, while the sum is 78.

The spelling of 28279745819376 in words is "twenty-eight trillion, two hundred seventy-nine billion, seven hundred forty-five million, eight hundred nineteen thousand, three hundred seventy-six".