331903729073 has 8 divisors (see below), whose sum is σ = 401631403392. Its totient is φ = 267754268736.

The previous prime is 331903729051. The next prime is 331903729121. The reversal of 331903729073 is 370927309133.

It is a happy number.

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 331903729073 - 2⁶ = 331903729009 is a prime.

It is a super-2 number, since 2×331903729073² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331903729373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394553365 + ... + 1394553602.

It is an arithmetic number, because the mean of its divisors is an integer number (50203925424).

Almost surely, 2^331903729073 is an apocalyptic number.

It is an amenable number.

331903729073 is a deficient number, since it is larger than the sum of its proper divisors (69727674319).

331903729073 is a wasteful number, since it uses less digits than its factorization.

331903729073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789106991.

The product of its (nonzero) digits is 642978, while the sum is 47.

The spelling of 331903729073 in words is "three hundred thirty-one billion, nine hundred three million, seven hundred twenty-nine thousand, seventy-three".