28294693292 has 12 divisors (see below), whose sum is σ = 49571543280. Its totient is φ = 14131395216.

The previous prime is 28294693283. The next prime is 28294693303. The reversal of 28294693292 is 29239649282.

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, 3983867 + ... + 3990962.

It is an arithmetic number, because the mean of its divisors is an integer number (4130961940).

Almost surely, 2^28294693292 is an apocalyptic number.

It is an amenable number.

28294693292 is a deficient number, since it is larger than the sum of its proper divisors (21276849988).

28294693292 is a wasteful number, since it uses less digits than its factorization.

28294693292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975720 (or 7975718 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 56.

The spelling of 28294693292 in words is "twenty-eight billion, two hundred ninety-four million, six hundred ninety-three thousand, two hundred ninety-two".