395057858186881 has 4 divisors (see below), whose sum is σ = 395505262330672. Its totient is φ = 394610454043092.

The previous prime is 395057858186843. The next prime is 395057858186891. The reversal of 395057858186881 is 188681858750593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 395057858186881 - 2¹³ = 395057858178689 is a prime.

It is a super-2 number, since 2×395057858186881² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395057858186795 and 395057858186804.

It is not an unprimeable number, because it can be changed into a prime (395057858186821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223702070571 + ... + 223702072336.

It is an arithmetic number, because the mean of its divisors is an integer number (98876315582668).

Almost surely, 2^{395057858186881} is an apocalyptic number.

It is an amenable number.

395057858186881 is a deficient number, since it is larger than the sum of its proper divisors (447404143791).

395057858186881 is an equidigital number, since it uses as much as digits as its factorization.

395057858186881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447404143790.

The product of its (nonzero) digits is 4644864000, while the sum is 82.

The spelling of 395057858186881 in words is "three hundred ninety-five trillion, fifty-seven billion, eight hundred fifty-eight million, one hundred eighty-six thousand, eight hundred eighty-one".