6873285257 has 2 divisors, whose sum is σ = 6873285258. Its totient is φ = 6873285256.

The previous prime is 6873285203. The next prime is 6873285301. The reversal of 6873285257 is 7525823786.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6556302841 + 316982416 = 80971^2 + 17804^2 .

It is a cyclic number.

It is not a de Polignac number, because 6873285257 - 2⁶ = 6873285193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6873285199 and 6873285208.

It is not a weakly prime, because it can be changed into another prime (6873281257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3436642628 + 3436642629.

It is an arithmetic number, because the mean of its divisors is an integer number (3436642629).

Almost surely, 2^6873285257 is an apocalyptic number.

It is an amenable number.

6873285257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6873285257 is an equidigital number, since it uses as much as digits as its factorization.

6873285257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 53.

The square root of 6873285257 is about 82905.2788246925. The cubic root of 6873285257 is about 1901.3181302996.

The spelling of 6873285257 in words is "six billion, eight hundred seventy-three million, two hundred eighty-five thousand, two hundred fifty-seven".