3412781257 has 2 divisors, whose sum is σ = 3412781258. Its totient is φ = 3412781256.

The previous prime is 3412781231. The next prime is 3412781269. The reversal of 3412781257 is 7521872143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3324214336 + 88566921 = 57656^2 + 9411^2 .

It is an emirp because it is prime and its reverse (7521872143) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3412781257 is a prime.

It is not a weakly prime, because it can be changed into another prime (3412781287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1706390628 + 1706390629.

It is an arithmetic number, because the mean of its divisors is an integer number (1706390629).

Almost surely, 2^3412781257 is an apocalyptic number.

It is an amenable number.

3412781257 is a deficient number, since it is larger than the sum of its proper divisors (1).

3412781257 is an equidigital number, since it uses as much as digits as its factorization.

3412781257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 3412781257 is about 58419.0145158235. The cubic root of 3412781257 is about 1505.5764662515.

The spelling of 3412781257 in words is "three billion, four hundred twelve million, seven hundred eighty-one thousand, two hundred fifty-seven".