28275883879 has 32 divisors (see below), whose sum is σ = 30942305856. Its totient is φ = 25737953280.

The previous prime is 28275883873. The next prime is 28275883901. The reversal of 28275883879 is 97838857282.

It is not a de Polignac number, because 28275883879 - 2¹⁹ = 28275359591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28275883873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23233479 + ... + 23234695.

It is an arithmetic number, because the mean of its divisors is an integer number (966947058).

Almost surely, 2^28275883879 is an apocalyptic number.

28275883879 is a deficient number, since it is larger than the sum of its proper divisors (2666421977).

28275883879 is a wasteful number, since it uses less digits than its factorization.

28275883879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635.

The product of its digits is 108380160, while the sum is 67.

The spelling of 28275883879 in words is "twenty-eight billion, two hundred seventy-five million, eight hundred eighty-three thousand, eight hundred seventy-nine".