318861158554 has 8 divisors (see below), whose sum is σ = 478304068788. Its totient is φ = 159426468960.

The previous prime is 318861158549. The next prime is 318861158591. The reversal of 318861158554 is 455851168813.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 299072265625 + 19788892929 = 546875^2 + 140673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 318861158495 and 318861158504.

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 in 3 ways as a sum of consecutive naturals, for example, 1957257 + ... + 2113900.

Almost surely, 2^318861158554 is an apocalyptic number.

318861158554 is a deficient number, since it is larger than the sum of its proper divisors (159442910234).

318861158554 is a wasteful number, since it uses less digits than its factorization.

318861158554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110320.

The product of its digits is 4608000, while the sum is 55.

The spelling of 318861158554 in words is "three hundred eighteen billion, eight hundred sixty-one million, one hundred fifty-eight thousand, five hundred fifty-four".