28567231676438 has 64 divisors (see below), whose sum is σ = 52930106449920. Its totient is φ = 11260552165632.

The previous prime is 28567231676369. The next prime is 28567231676483. The reversal of 28567231676438 is 83467613276582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56231003 + ... + 56736761.

It is an arithmetic number, because the mean of its divisors is an integer number (827032913280).

Almost surely, 2^{28567231676438} is an apocalyptic number.

28567231676438 is a deficient number, since it is larger than the sum of its proper divisors (24362874773482).

28567231676438 is a wasteful number, since it uses less digits than its factorization.

28567231676438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506901.

The product of its digits is 487710720, while the sum is 68.

The spelling of 28567231676438 in words is "twenty-eight trillion, five hundred sixty-seven billion, two hundred thirty-one million, six hundred seventy-six thousand, four hundred thirty-eight".