380951996190509 has 2 divisors, whose sum is σ = 380951996190510. Its totient is φ = 380951996190508.

The previous prime is 380951996190457. The next prime is 380951996190541. The reversal of 380951996190509 is 905091699159083.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226328615585284 + 154623380605225 = 15044222^2 + 12434765^2 .

It is a cyclic number.

It is not a de Polignac number, because 380951996190509 - 2³⁶ = 380883276713773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380951996100509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190475998095254 + 190475998095255.

It is an arithmetic number, because the mean of its divisors is an integer number (190475998095255).

Almost surely, 2^{380951996190509} is an apocalyptic number.

It is an amenable number.

380951996190509 is a deficient number, since it is larger than the sum of its proper divisors (1).

380951996190509 is an equidigital number, since it uses as much as digits as its factorization.

380951996190509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 212576400, while the sum is 74.

The spelling of 380951996190509 in words is "three hundred eighty trillion, nine hundred fifty-one billion, nine hundred ninety-six million, one hundred ninety thousand, five hundred nine".