28406930930827 has 2 divisors, whose sum is σ = 28406930930828. Its totient is φ = 28406930930826.

The previous prime is 28406930930809. The next prime is 28406930930899. The reversal of 28406930930827 is 72803903960482.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28406930930827 is a prime.

It is not a weakly prime, because it can be changed into another prime (28406930930227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14203465465413 + 14203465465414.

It is an arithmetic number, because the mean of its divisors is an integer number (14203465465414).

Almost surely, 2^{28406930930827} is an apocalyptic number.

28406930930827 is a deficient number, since it is larger than the sum of its proper divisors (1).

28406930930827 is an equidigital number, since it uses as much as digits as its factorization.

28406930930827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 28406930930827 in words is "twenty-eight trillion, four hundred six billion, nine hundred thirty million, nine hundred thirty thousand, eight hundred twenty-seven".