28965954720 has 48 divisors (see below), whose sum is σ = 91242758880. Its totient is φ = 7724254464.

The previous prime is 28965954697. The next prime is 28965954821. The reversal of 28965954720 is 2745956982.

It is a tau number, because it is divible by the number of its divisors (48).

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, 30172390 + ... + 30173349.

It is an arithmetic number, because the mean of its divisors is an integer number (1900890810).

Almost surely, 2^28965954720 is an apocalyptic number.

28965954720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28965954720 is an abundant number, since it is smaller than the sum of its proper divisors (62276804160).

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

28965954720 is a wasteful number, since it uses less digits than its factorization.

28965954720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60345757 (or 60345749 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 28965954720 in words is "twenty-eight billion, nine hundred sixty-five million, nine hundred fifty-four thousand, seven hundred twenty".