18068408293 has 8 divisors (see below), whose sum is σ = 19872292608. Its totient is φ = 16323667824.

The previous prime is 18068408279. The next prime is 18068408377. The reversal of 18068408293 is 39280486081.

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 18068408293 - 2⁵ = 18068408261 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 (18068408243) 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, 14785321 + ... + 14786542.

It is an arithmetic number, because the mean of its divisors is an integer number (2484036576).

Almost surely, 2^18068408293 is an apocalyptic number.

18068408293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18068408293 is a deficient number, since it is larger than the sum of its proper divisors (1803884315).

18068408293 is a wasteful number, since it uses less digits than its factorization.

18068408293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29571923.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 18068408293 in words is "eighteen billion, sixty-eight million, four hundred eight thousand, two hundred ninety-three".