28056106433 has 2 divisors, whose sum is σ = 28056106434. Its totient is φ = 28056106432.

The previous prime is 28056106427. The next prime is 28056106487. The reversal of 28056106433 is 33460165082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24627652624 + 3428453809 = 156932^2 + 58553^2 .

It is a cyclic number.

It is not a de Polignac number, because 28056106433 - 2¹⁰ = 28056105409 is a prime.

It is not a weakly prime, because it can be changed into another prime (28056126433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028053216 + 14028053217.

It is an arithmetic number, because the mean of its divisors is an integer number (14028053217).

Almost surely, 2^28056106433 is an apocalyptic number.

It is an amenable number.

28056106433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056106433 is an equidigital number, since it uses as much as digits as its factorization.

28056106433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 28056106433 in words is "twenty-eight billion, fifty-six million, one hundred six thousand, four hundred thirty-three".