395662642279 has 2 divisors, whose sum is σ = 395662642280. Its totient is φ = 395662642278.

The previous prime is 395662642247. The next prime is 395662642327. The reversal of 395662642279 is 972246266593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 395662642279 - 2⁵ = 395662642247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395662642579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197831321139 + 197831321140.

It is an arithmetic number, because the mean of its divisors is an integer number (197831321140).

Almost surely, 2^395662642279 is an apocalyptic number.

395662642279 is a deficient number, since it is larger than the sum of its proper divisors (1).

395662642279 is an equidigital number, since it uses as much as digits as its factorization.

395662642279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 61.

The spelling of 395662642279 in words is "three hundred ninety-five billion, six hundred sixty-two million, six hundred forty-two thousand, two hundred seventy-nine".