318646135774 has 4 divisors (see below), whose sum is σ = 477969203664. Its totient is φ = 159323067886.

The previous prime is 318646135741. The next prime is 318646135813. The reversal of 318646135774 is 477531646813.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79661533942 + ... + 79661533945.

It is an arithmetic number, because the mean of its divisors is an integer number (119492300916).

Almost surely, 2^318646135774 is an apocalyptic number.

318646135774 is a deficient number, since it is larger than the sum of its proper divisors (159323067890).

318646135774 is a wasteful number, since it uses less digits than its factorization.

318646135774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159323067889.

The product of its digits is 10160640, while the sum is 55.

The spelling of 318646135774 in words is "three hundred eighteen billion, six hundred forty-six million, one hundred thirty-five thousand, seven hundred seventy-four".