380635623647 has 2 divisors, whose sum is σ = 380635623648. Its totient is φ = 380635623646.

The previous prime is 380635623611. The next prime is 380635623653. The reversal of 380635623647 is 746326536083.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380635623647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380635623047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190317811823 + 190317811824.

It is an arithmetic number, because the mean of its divisors is an integer number (190317811824).

Almost surely, 2^380635623647 is an apocalyptic number.

380635623647 is a deficient number, since it is larger than the sum of its proper divisors (1).

380635623647 is an equidigital number, since it uses as much as digits as its factorization.

380635623647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 380635623647 in words is "three hundred eighty billion, six hundred thirty-five million, six hundred twenty-three thousand, six hundred forty-seven".