395140465019 has 2 divisors, whose sum is σ = 395140465020. Its totient is φ = 395140465018.

The previous prime is 395140464911. The next prime is 395140465043. The reversal of 395140465019 is 910564041593.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (910564041593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395140465019 - 2²⁰ = 395139416443 is a prime.

It is a super-2 number, since 2×395140465019² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (395140165019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197570232509 + 197570232510.

It is an arithmetic number, because the mean of its divisors is an integer number (197570232510).

Almost surely, 2^395140465019 is an apocalyptic number.

395140465019 is a deficient number, since it is larger than the sum of its proper divisors (1).

395140465019 is an equidigital number, since it uses as much as digits as its factorization.

395140465019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 395140465019 in words is "three hundred ninety-five billion, one hundred forty million, four hundred sixty-five thousand, nineteen".