395260671980 has 12 divisors (see below), whose sum is σ = 830047411200. Its totient is φ = 158104268784.

The previous prime is 395260671979. The next prime is 395260671983. The reversal of 395260671980 is 89176062593.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (395260671983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9881516780 + ... + 9881516819.

It is an arithmetic number, because the mean of its divisors is an integer number (69170617600).

Almost surely, 2^395260671980 is an apocalyptic number.

It is an amenable number.

395260671980 is an abundant number, since it is smaller than the sum of its proper divisors (434786739220).

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

395260671980 is a wasteful number, since it uses less digits than its factorization.

395260671980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19763033608 (or 19763033606 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 395260671980 in words is "three hundred ninety-five billion, two hundred sixty million, six hundred seventy-one thousand, nine hundred eighty".