395449148671 has 2 divisors, whose sum is σ = 395449148672. Its totient is φ = 395449148670.

The previous prime is 395449148603. The next prime is 395449148687. The reversal of 395449148671 is 176841944593.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 395449148671 - 2¹⁷ = 395449017599 is a prime.

It is a super-2 number, since 2×395449148671² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395449149671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197724574335 + 197724574336.

It is an arithmetic number, because the mean of its divisors is an integer number (197724574336).

Almost surely, 2^395449148671 is an apocalyptic number.

395449148671 is a deficient number, since it is larger than the sum of its proper divisors (1).

395449148671 is an equidigital number, since it uses as much as digits as its factorization.

395449148671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 61.

The spelling of 395449148671 in words is "three hundred ninety-five billion, four hundred forty-nine million, one hundred forty-eight thousand, six hundred seventy-one".