395129353856 has 64 divisors (see below), whose sum is σ = 833674135680. Its totient is φ = 185899020288.

The previous prime is 395129353837. The next prime is 395129353919. The reversal of 395129353856 is 658353921593.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×395129353856² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395129353795 and 395129353804.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10258025 + ... + 10296471.

It is an arithmetic number, because the mean of its divisors is an integer number (13026158370).

Almost surely, 2^395129353856 is an apocalyptic number.

It is an amenable number.

395129353856 is an abundant number, since it is smaller than the sum of its proper divisors (438544781824).

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

395129353856 is a wasteful number, since it uses less digits than its factorization.

395129353856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43201 (or 43189 counting only the distinct ones).

The product of its digits is 26244000, while the sum is 59.

The spelling of 395129353856 in words is "three hundred ninety-five billion, one hundred twenty-nine million, three hundred fifty-three thousand, eight hundred fifty-six".