28851446764 has 36 divisors (see below), whose sum is σ = 58746174480. Its totient is φ = 12362196000.

The previous prime is 28851446719. The next prime is 28851446777. The reversal of 28851446764 is 46764415882.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1064817 + ... + 1091575.

It is an arithmetic number, because the mean of its divisors is an integer number (1631838180).

Almost surely, 2^28851446764 is an apocalyptic number.

It is an amenable number.

28851446764 is an abundant number, since it is smaller than the sum of its proper divisors (29894727716).

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

28851446764 is a wasteful number, since it uses less digits than its factorization.

28851446764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32278 (or 32269 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 55.

The spelling of 28851446764 in words is "twenty-eight billion, eight hundred fifty-one million, four hundred forty-six thousand, seven hundred sixty-four".