331798790331 has 24 divisors (see below), whose sum is σ = 482808830400. Its totient is φ = 219565558656.

The previous prime is 331798790311. The next prime is 331798790339. The reversal of 331798790331 is 133097897133.

It is a happy number.

It is not a de Polignac number, because 331798790331 - 2²⁶ = 331731681467 is a prime.

It is a super-2 number, since 2×331798790331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331798790339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1910871 + ... + 2077263.

It is an arithmetic number, because the mean of its divisors is an integer number (20117034600).

Almost surely, 2^331798790331 is an apocalyptic number.

331798790331 is a deficient number, since it is larger than the sum of its proper divisors (151010040069).

331798790331 is a wasteful number, since it uses less digits than its factorization.

331798790331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168035 (or 168032 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The spelling of 331798790331 in words is "three hundred thirty-one billion, seven hundred ninety-eight million, seven hundred ninety thousand, three hundred thirty-one".