331473738641 has 8 divisors (see below), whose sum is σ = 340463274984. Its totient is φ = 322485822720.

The previous prime is 331473738619. The next prime is 331473738643. The reversal of 331473738641 is 146837374133.

It can be written as a sum of positive squares in 4 ways, for example, as 33903488641 + 297570250000 = 184129^2 + 545500^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331473738641 - 2¹⁸ = 331473476497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331473738641.

It is not an unprimeable number, because it can be changed into a prime (331473738643) 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, 15401 + ... + 814361.

It is an arithmetic number, because the mean of its divisors is an integer number (42557909373).

Almost surely, 2^331473738641 is an apocalyptic number.

It is an amenable number.

331473738641 is a deficient number, since it is larger than the sum of its proper divisors (8989536343).

331473738641 is a wasteful number, since it uses less digits than its factorization.

331473738641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810211.

The product of its digits is 3048192, while the sum is 50.

The spelling of 331473738641 in words is "three hundred thirty-one billion, four hundred seventy-three million, seven hundred thirty-eight thousand, six hundred forty-one".