331395969426 has 8 divisors (see below), whose sum is σ = 662791938864. Its totient is φ = 110465323140.

The previous prime is 331395969389. The next prime is 331395969479. The reversal of 331395969426 is 624969593133.

331395969426 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

331395969426 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 331395969426.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27616330780 + ... + 27616330791.

It is an arithmetic number, because the mean of its divisors is an integer number (82848992358).

Almost surely, 2^331395969426 is an apocalyptic number.

331395969426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

331395969426 is a wasteful number, since it uses less digits than its factorization.

331395969426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55232661576.

The product of its digits is 28343520, while the sum is 60.

The spelling of 331395969426 in words is "three hundred thirty-one billion, three hundred ninety-five million, nine hundred sixty-nine thousand, four hundred twenty-six".