556428354818 has 24 divisors (see below), whose sum is σ = 997153284288. Its totient is φ = 228101061672.

The previous prime is 556428354817. The next prime is 556428354869. The reversal of 556428354818 is 818453824655.

It is a super-2 number, since 2×556428354818² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556428354817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37558646 + ... + 37573457.

It is an arithmetic number, because the mean of its divisors is an integer number (41548053512).

Almost surely, 2^556428354818 is an apocalyptic number.

556428354818 is a deficient number, since it is larger than the sum of its proper divisors (440724929470).

556428354818 is a wasteful number, since it uses less digits than its factorization.

556428354818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75132158 (or 75132135 counting only the distinct ones).

The product of its digits is 36864000, while the sum is 59.

The spelling of 556428354818 in words is "five hundred fifty-six billion, four hundred twenty-eight million, three hundred fifty-four thousand, eight hundred eighteen".