28475271029 has 2 divisors, whose sum is σ = 28475271030. Its totient is φ = 28475271028.

The previous prime is 28475271017. The next prime is 28475271053. The reversal of 28475271029 is 92017257482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25664680804 + 2810590225 = 160202^2 + 53015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28475271029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28475271089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14237635514 + 14237635515.

It is an arithmetic number, because the mean of its divisors is an integer number (14237635515).

Almost surely, 2^28475271029 is an apocalyptic number.

It is an amenable number.

28475271029 is a deficient number, since it is larger than the sum of its proper divisors (1).

28475271029 is an equidigital number, since it uses as much as digits as its factorization.

28475271029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 28475271029 in words is "twenty-eight billion, four hundred seventy-five million, two hundred seventy-one thousand, twenty-nine".