28802277816 has 64 divisors (see below), whose sum is σ = 80046059520. Its totient is φ = 8576357760.

The previous prime is 28802277809. The next prime is 28802277851. The reversal of 28802277816 is 61877220882.

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, 1479280 + ... + 1498623.

It is an arithmetic number, because the mean of its divisors is an integer number (1250719680).

Almost surely, 2^28802277816 is an apocalyptic number.

28802277816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28802277816 is an abundant number, since it is smaller than the sum of its proper divisors (51243781704).

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

28802277816 is a wasteful number, since it uses less digits than its factorization.

28802277816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977956 (or 2977952 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 51.

The spelling of 28802277816 in words is "twenty-eight billion, eight hundred two million, two hundred seventy-seven thousand, eight hundred sixteen".