318149822318 has 4 divisors (see below), whose sum is σ = 477224733480. Its totient is φ = 159074911158.

The previous prime is 318149822317. The next prime is 318149822437. The reversal of 318149822318 is 813228941813.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318149822317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79537455578 + ... + 79537455581.

It is an arithmetic number, because the mean of its divisors is an integer number (119306183370).

Almost surely, 2^318149822318 is an apocalyptic number.

318149822318 is a deficient number, since it is larger than the sum of its proper divisors (159074911162).

318149822318 is a wasteful number, since it uses less digits than its factorization.

318149822318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159074911161.

The product of its digits is 663552, while the sum is 50.

The spelling of 318149822318 in words is "three hundred eighteen billion, one hundred forty-nine million, eight hundred twenty-two thousand, three hundred eighteen".