318378790799 has 4 divisors (see below), whose sum is σ = 321196302336. Its totient is φ = 315561279264.

The previous prime is 318378790787. The next prime is 318378790811. The reversal of 318378790799 is 997097873813.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (318378790787) and next prime (318378790811).

It is a cyclic number.

It is not a de Polignac number, because 318378790799 - 2¹² = 318378786703 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 (318378790199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408755599 + ... + 1408755824.

It is an arithmetic number, because the mean of its divisors is an integer number (80299075584).

Almost surely, 2^318378790799 is an apocalyptic number.

318378790799 is a deficient number, since it is larger than the sum of its proper divisors (2817511537).

318378790799 is a wasteful number, since it uses less digits than its factorization.

318378790799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817511536.

The product of its (nonzero) digits is 144027072, while the sum is 71.

The spelling of 318378790799 in words is "three hundred eighteen billion, three hundred seventy-eight million, seven hundred ninety thousand, seven hundred ninety-nine".