318875454349 has 4 divisors (see below), whose sum is σ = 329161759360. Its totient is φ = 308589149340.

The previous prime is 318875454343. The next prime is 318875454361. The reversal of 318875454349 is 943454578813.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318875454349 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 (318875454343) 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, 5143152459 + ... + 5143152520.

It is an arithmetic number, because the mean of its divisors is an integer number (82290439840).

Almost surely, 2^318875454349 is an apocalyptic number.

It is an amenable number.

318875454349 is a deficient number, since it is larger than the sum of its proper divisors (10286305011).

318875454349 is a wasteful number, since it uses less digits than its factorization.

318875454349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286305010.

The product of its digits is 58060800, while the sum is 61.

The spelling of 318875454349 in words is "three hundred eighteen billion, eight hundred seventy-five million, four hundred fifty-four thousand, three hundred forty-nine".