28849707776320 has 112 divisors (see below), whose sum is σ = 72076976349696. Its totient is φ = 10984552704000.

The previous prime is 28849707776299. The next prime is 28849707776333. The reversal of 28849707776320 is 2367770794882.

It is a self number, because there is not a number n which added to its sum of digits gives 28849707776320.

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, 23232886 + ... + 24443125.

Almost surely, 2^{28849707776320} is an apocalyptic number.

28849707776320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28849707776320 is an abundant number, since it is smaller than the sum of its proper divisors (43227268573376).

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

28849707776320 is a wasteful number, since it uses less digits than its factorization.

28849707776320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47676120 (or 47676110 counting only the distinct ones).

The product of its (nonzero) digits is 398297088, while the sum is 70.

The spelling of 28849707776320 in words is "twenty-eight trillion, eight hundred forty-nine billion, seven hundred seven million, seven hundred seventy-six thousand, three hundred twenty".