9331681815797 has 8 divisors (see below), whose sum is σ = 10622625940800. Its totient is φ = 8114505926560.

The previous prime is 9331681815793. The next prime is 9331681815817. The reversal of 9331681815797 is 7975181861339.

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

It is not a de Polignac number, because 9331681815797 - 2² = 9331681815793 is a prime.

It is a super-2 number, since 2×9331681815797² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9331681815793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18442058672 + ... + 18442059177.

It is an arithmetic number, because the mean of its divisors is an integer number (1327828242600).

Almost surely, 2^{9331681815797} is an apocalyptic number.

It is an amenable number.

9331681815797 is a deficient number, since it is larger than the sum of its proper divisors (1290944125003).

9331681815797 is a wasteful number, since it uses less digits than its factorization.

9331681815797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36884117883.

The product of its digits is 68584320, while the sum is 68.

The spelling of 9331681815797 in words is "nine trillion, three hundred thirty-one billion, six hundred eighty-one million, eight hundred fifteen thousand, seven hundred ninety-seven".