3386778457 has 2 divisors, whose sum is σ = 3386778458. Its totient is φ = 3386778456.

The previous prime is 3386778431. The next prime is 3386778467. The reversal of 3386778457 is 7548776833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2894870416 + 491908041 = 53804^2 + 22179^2 .

It is a cyclic number.

It is not a de Polignac number, because 3386778457 - 2¹⁵ = 3386745689 is a prime.

It is a super-2 number, since 2×3386778457² = 22940536633598601698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3386778407) 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, 1693389228 + 1693389229.

It is an arithmetic number, because the mean of its divisors is an integer number (1693389229).

Almost surely, 2^3386778457 is an apocalyptic number.

It is an amenable number.

3386778457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3386778457 is an equidigital number, since it uses as much as digits as its factorization.

3386778457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 58.

The square root of 3386778457 is about 58196.0347188707. The cubic root of 3386778457 is about 1501.7429306035.

The spelling of 3386778457 in words is "three billion, three hundred eighty-six million, seven hundred seventy-eight thousand, four hundred fifty-seven".