1316818793 has 8 divisors (see below), whose sum is σ = 1454899968. Its totient is φ = 1185473344.

The previous prime is 1316818781. The next prime is 1316818801. The reversal of 1316818793 is 3978186131.

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 1316818793 - 2⁴ = 1316818777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316818733) 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, 1683521 + ... + 1684302.

It is an arithmetic number, because the mean of its divisors is an integer number (181862496).

Almost surely, 2^1316818793 is an apocalyptic number.

It is an amenable number.

1316818793 is a deficient number, since it is larger than the sum of its proper divisors (138081175).

1316818793 is a wasteful number, since it uses less digits than its factorization.

1316818793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367863.

The product of its digits is 217728, while the sum is 47.

The square root of 1316818793 is about 36287.9979194223. The cubic root of 1316818793 is about 1096.0793740910.

The spelling of 1316818793 in words is "one billion, three hundred sixteen million, eight hundred eighteen thousand, seven hundred ninety-three".