395780849205 has 32 divisors (see below), whose sum is σ = 723766971648. Its totient is φ = 180915033600.

The previous prime is 395780849197. The next prime is 395780849273. The reversal of 395780849205 is 502948087593.

It is not a de Polignac number, because 395780849205 - 2³ = 395780849197 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 31 ways as a sum of consecutive naturals, for example, 1367535 + ... + 1631475.

It is an arithmetic number, because the mean of its divisors is an integer number (22617717864).

Almost surely, 2^395780849205 is an apocalyptic number.

395780849205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

395780849205 is a deficient number, since it is larger than the sum of its proper divisors (327986122443).

395780849205 is a wasteful number, since it uses less digits than its factorization.

395780849205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278237.

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 395780849205 in words is "three hundred ninety-five billion, seven hundred eighty million, eight hundred forty-nine thousand, two hundred five".