318861364815434 has 16 divisors (see below), whose sum is σ = 555884219534400. Its totient is φ = 134338686386784.

The previous prime is 318861364815377. The next prime is 318861364815463. The reversal of 318861364815434 is 434518463168813.

It is a happy number.

It is a super-2 number, since 2×318861364815434² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193015353179 + ... + 193015354830.

It is an arithmetic number, because the mean of its divisors is an integer number (34742763720900).

Almost surely, 2^{318861364815434} is an apocalyptic number.

318861364815434 is a deficient number, since it is larger than the sum of its proper divisors (237022854718966).

318861364815434 is a wasteful number, since it uses less digits than its factorization.

318861364815434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386030708077.

The product of its digits is 159252480, while the sum is 65.

The spelling of 318861364815434 in words is "three hundred eighteen trillion, eight hundred sixty-one billion, three hundred sixty-four million, eight hundred fifteen thousand, four hundred thirty-four".