395408020895 has 4 divisors (see below), whose sum is σ = 474489625080. Its totient is φ = 316326416712.

The previous prime is 395408020837. The next prime is 395408020991. The reversal of 395408020895 is 598020804593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 395408020895 - 2¹² = 395408016799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39540802085 + ... + 39540802094.

It is an arithmetic number, because the mean of its divisors is an integer number (118622406270).

Almost surely, 2^395408020895 is an apocalyptic number.

395408020895 is a deficient number, since it is larger than the sum of its proper divisors (79081604185).

395408020895 is an equidigital number, since it uses as much as digits as its factorization.

395408020895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79081604184.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 395408020895 in words is "three hundred ninety-five billion, four hundred eight million, twenty thousand, eight hundred ninety-five".