380420820727 has 2 divisors, whose sum is σ = 380420820728. Its totient is φ = 380420820726.

The previous prime is 380420820719. The next prime is 380420820803. The reversal of 380420820727 is 727028024083.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (727028024083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380420820727 - 2³ = 380420820719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380420860727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190210410363 + 190210410364.

It is an arithmetic number, because the mean of its divisors is an integer number (190210410364).

Almost surely, 2^380420820727 is an apocalyptic number.

380420820727 is a deficient number, since it is larger than the sum of its proper divisors (1).

380420820727 is an equidigital number, since it uses as much as digits as its factorization.

380420820727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 380420820727 in words is "three hundred eighty billion, four hundred twenty million, eight hundred twenty thousand, seven hundred twenty-seven".