1377660413 has 2 divisors, whose sum is σ = 1377660414. Its totient is φ = 1377660412.

The previous prime is 1377660391. The next prime is 1377660419. The reversal of 1377660413 is 3140667731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1282929124 + 94731289 = 35818^2 + 9733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377660413 - 2⁸ = 1377660157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377660419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688830206 + 688830207.

It is an arithmetic number, because the mean of its divisors is an integer number (688830207).

Almost surely, 2^1377660413 is an apocalyptic number.

It is an amenable number.

1377660413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377660413 is an equidigital number, since it uses as much as digits as its factorization.

1377660413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 1377660413 is about 37116.8481016371. The cubic root of 1377660413 is about 1112.7067596689.

The spelling of 1377660413 in words is "one billion, three hundred seventy-seven million, six hundred sixty thousand, four hundred thirteen".