395974147992 has 32 divisors (see below), whose sum is σ = 1032976039680. Its totient is φ = 126252626720.

The previous prime is 395974147957. The next prime is 395974147993. The reversal of 395974147992 is 299741479593.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395974147993) 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 7 ways as a sum of consecutive naturals, for example, 358671684 + ... + 358672787.

It is an arithmetic number, because the mean of its divisors is an integer number (32280501240).

Almost surely, 2^395974147992 is an apocalyptic number.

It is an amenable number.

395974147992 is an abundant number, since it is smaller than the sum of its proper divisors (637001891688).

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

395974147992 is a wasteful number, since it uses less digits than its factorization.

395974147992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717344503 (or 717344499 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 69.

The spelling of 395974147992 in words is "three hundred ninety-five billion, nine hundred seventy-four million, one hundred forty-seven thousand, nine hundred ninety-two".