8391810018013 has 8 divisors (see below), whose sum is σ = 8900223313536. Its totient is φ = 7895359388400.

The previous prime is 8391810017923. The next prime is 8391810018019. The reversal of 8391810018013 is 3108100181938.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8391810018013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8391810018019) 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, 2990665033 + ... + 2990667838.

It is an arithmetic number, because the mean of its divisors is an integer number (1112527914192).

Almost surely, 2^{8391810018013} is an apocalyptic number.

It is an amenable number.

8391810018013 is a deficient number, since it is larger than the sum of its proper divisors (508413295523).

8391810018013 is a wasteful number, since it uses less digits than its factorization.

8391810018013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5981332955.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 8391810018013 in words is "eight trillion, three hundred ninety-one billion, eight hundred ten million, eighteen thousand, thirteen".