395190764164 has 81 divisors (see below), whose sum is σ = 815812947621. Its totient is φ = 167017606560.

The previous prime is 395190764159. The next prime is 395190764237. The reversal of 395190764164 is 461467091593.

The square root of 395190764164 is 628642.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 157007722564 + 238183041600 = 396242^2 + 488040^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 730481734 + ... + 730482274.

Almost surely, 2^395190764164 is an apocalyptic number.

395190764164 is the 628642-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395190764164

395190764164 is an abundant number, since it is smaller than the sum of its proper divisors (420622183457).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395190764164 is an frugal number, since it uses more digits than its factorization.

395190764164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 395190764164 in words is "three hundred ninety-five billion, one hundred ninety million, seven hundred sixty-four thousand, one hundred sixty-four".