28564247042 has 16 divisors (see below), whose sum is σ = 45556577280. Its totient is φ = 13385752128.

The previous prime is 28564247017. The next prime is 28564247051. The reversal of 28564247042 is 24074246582.

It is a junction number, because it is equal to n+sod(n) for n = 28564246984 and 28564247002.

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, 1749458 + ... + 1765709.

It is an arithmetic number, because the mean of its divisors is an integer number (2847286080).

Almost surely, 2^28564247042 is an apocalyptic number.

28564247042 is a deficient number, since it is larger than the sum of its proper divisors (16992330238).

28564247042 is a wasteful number, since it uses less digits than its factorization.

28564247042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515425.

The product of its (nonzero) digits is 860160, while the sum is 44.

The spelling of 28564247042 in words is "twenty-eight billion, five hundred sixty-four million, two hundred forty-seven thousand, forty-two".