380390430521 has 2 divisors, whose sum is σ = 380390430522. Its totient is φ = 380390430520.

The previous prime is 380390430491. The next prime is 380390430593. The reversal of 380390430521 is 125034093083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379955124025 + 435306496 = 616405^2 + 20864^2 .

It is a cyclic number.

It is not a de Polignac number, because 380390430521 - 2³⁰ = 379316688697 is a prime.

It is not a weakly prime, because it can be changed into another prime (380390435521) 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, 190195215260 + 190195215261.

It is an arithmetic number, because the mean of its divisors is an integer number (190195215261).

Almost surely, 2^380390430521 is an apocalyptic number.

It is an amenable number.

380390430521 is a deficient number, since it is larger than the sum of its proper divisors (1).

380390430521 is an equidigital number, since it uses as much as digits as its factorization.

380390430521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 380390430521 in words is "three hundred eighty billion, three hundred ninety million, four hundred thirty thousand, five hundred twenty-one".