28082080357 has 2 divisors, whose sum is σ = 28082080358. Its totient is φ = 28082080356.

The previous prime is 28082080339. The next prime is 28082080381. The reversal of 28082080357 is 75308028082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26426078721 + 1656001636 = 162561^2 + 40694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28082080357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28082080457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14041040178 + 14041040179.

It is an arithmetic number, because the mean of its divisors is an integer number (14041040179).

Almost surely, 2^28082080357 is an apocalyptic number.

It is an amenable number.

28082080357 is a deficient number, since it is larger than the sum of its proper divisors (1).

28082080357 is an equidigital number, since it uses as much as digits as its factorization.

28082080357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 28082080357 in words is "twenty-eight billion, eighty-two million, eighty thousand, three hundred fifty-seven".