395968197878 has 32 divisors (see below), whose sum is σ = 700659652608. Its totient is φ = 165793936000.

The previous prime is 395968197817. The next prime is 395968197893. The reversal of 395968197878 is 878791869593.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11245598 + ... + 11280753.

It is an arithmetic number, because the mean of its divisors is an integer number (21895614144).

Almost surely, 2^395968197878 is an apocalyptic number.

395968197878 is a deficient number, since it is larger than the sum of its proper divisors (304691454730).

395968197878 is a wasteful number, since it uses less digits than its factorization.

395968197878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22526428.

The product of its digits is 1646023680, while the sum is 80.

The spelling of 395968197878 in words is "three hundred ninety-five billion, nine hundred sixty-eight million, one hundred ninety-seven thousand, eight hundred seventy-eight".