28980685744 has 20 divisors (see below), whose sum is σ = 56154610240. Its totient is φ = 14489173440.

The previous prime is 28980685733. The next prime is 28980685751. The reversal of 28980685744 is 44758608982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152449 + ... + 284959.

It is an arithmetic number, because the mean of its divisors is an integer number (2807730512).

Almost surely, 2^28980685744 is an apocalyptic number.

It is an amenable number.

28980685744 is a deficient number, since it is larger than the sum of its proper divisors (27173924496).

28980685744 is a wasteful number, since it uses less digits than its factorization.

28980685744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146188 (or 146182 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 28980685744 in words is "twenty-eight billion, nine hundred eighty million, six hundred eighty-five thousand, seven hundred forty-four".