7381477613 has 2 divisors, whose sum is σ = 7381477614. Its totient is φ = 7381477612.

The previous prime is 7381477601. The next prime is 7381477651. The reversal of 7381477613 is 3167741837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6739260649 + 642216964 = 82093^2 + 25342^2 .

It is a cyclic number.

It is not a de Polignac number, because 7381477613 - 2¹⁸ = 7381215469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7381477693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3690738806 + 3690738807.

It is an arithmetic number, because the mean of its divisors is an integer number (3690738807).

Almost surely, 2^7381477613 is an apocalyptic number.

It is an amenable number.

7381477613 is a deficient number, since it is larger than the sum of its proper divisors (1).

7381477613 is an equidigital number, since it uses as much as digits as its factorization.

7381477613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 47.

The square root of 7381477613 is about 85915.5260299324. The cubic root of 7381477613 is about 1947.0679242040.

The spelling of 7381477613 in words is "seven billion, three hundred eighty-one million, four hundred seventy-seven thousand, six hundred thirteen".