28499814948 has 24 divisors (see below), whose sum is σ = 72544983840. Its totient is φ = 8636307520.

The previous prime is 28499814923. The next prime is 28499815007. The reversal of 28499814948 is 84941899482.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107953713 + ... + 107953976.

It is an arithmetic number, because the mean of its divisors is an integer number (3022707660).

Almost surely, 2^28499814948 is an apocalyptic number.

It is an amenable number.

28499814948 is an abundant number, since it is smaller than the sum of its proper divisors (44045168892).

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

28499814948 is a wasteful number, since it uses less digits than its factorization.

28499814948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215907707 (or 215907705 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 66.

The spelling of 28499814948 in words is "twenty-eight billion, four hundred ninety-nine million, eight hundred fourteen thousand, nine hundred forty-eight".