395463663880 has 32 divisors (see below), whose sum is σ = 895460730840. Its totient is φ = 157177912320.

The previous prime is 395463663853. The next prime is 395463663911. The reversal of 395463663880 is 88366364593.

It can be written as a sum of positive squares in 4 ways, for example, as 234699553764 + 160764110116 = 484458^2 + 400954^2 .

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31479681 + ... + 31492240.

Almost surely, 2^395463663880 is an apocalyptic number.

It is an amenable number.

395463663880 is an abundant number, since it is smaller than the sum of its proper divisors (499997066960).

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

395463663880 is a wasteful number, since it uses less digits than its factorization.

395463663880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62972089 (or 62972085 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 61.

The spelling of 395463663880 in words is "three hundred ninety-five billion, four hundred sixty-three million, six hundred sixty-three thousand, eight hundred eighty".