28775742882 has 16 divisors (see below), whose sum is σ = 57563575680. Its totient is φ = 9589899312.

The previous prime is 28775742799. The next prime is 28775742977. The reversal of 28775742882 is 28824757782.

It is a happy number.

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, 472657 + ... + 530052.

It is an arithmetic number, because the mean of its divisors is an integer number (3597723480).

Almost surely, 2^28775742882 is an apocalyptic number.

28775742882 is an abundant number, since it is smaller than the sum of its proper divisors (28787832798).

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

28775742882 is a wasteful number, since it uses less digits than its factorization.

28775742882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007497.

The product of its digits is 28098560, while the sum is 60.

The spelling of 28775742882 in words is "twenty-eight billion, seven hundred seventy-five million, seven hundred forty-two thousand, eight hundred eighty-two".