28877648332 has 48 divisors (see below), whose sum is σ = 60657539040. Its totient is φ = 11883912192.

The previous prime is 28877648329. The next prime is 28877648357. The reversal of 28877648332 is 23384677882.

It is a happy 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, 842863 + ... + 876454.

It is an arithmetic number, because the mean of its divisors is an integer number (1263698730).

Almost surely, 2^28877648332 is an apocalyptic number.

It is an amenable number.

28877648332 is an abundant number, since it is smaller than the sum of its proper divisors (31779890708).

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

28877648332 is a wasteful number, since it uses less digits than its factorization.

28877648332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719370 (or 1719368 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 58.

The spelling of 28877648332 in words is "twenty-eight billion, eight hundred seventy-seven million, six hundred forty-eight thousand, three hundred thirty-two".