28947620882 has 16 divisors (see below), whose sum is σ = 45556917504. Its totient is φ = 13777290000.

The previous prime is 28947620873. The next prime is 28947620939. The reversal of 28947620882 is 28802674982.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3823244 + ... + 3830807.

It is an arithmetic number, because the mean of its divisors is an integer number (2847307344).

Almost surely, 2^28947620882 is an apocalyptic number.

28947620882 is a deficient number, since it is larger than the sum of its proper divisors (16609296622).

28947620882 is a wasteful number, since it uses less digits than its factorization.

28947620882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654145.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 28947620882 in words is "twenty-eight billion, nine hundred forty-seven million, six hundred twenty thousand, eight hundred eighty-two".