618481984684824 has 128 divisors (see below), whose sum is σ = 1851750644083200. Its totient is φ = 190138517735040.

The previous prime is 618481984684787. The next prime is 618481984684841. The reversal of 618481984684824 is 428486489184816.

618481984684824 is a `hidden beast` number, since 6 + 1 + 8 + 4 + 8 + 1 + 98 + 46 + 8 + 482 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91427812 + ... + 97959219.

It is an arithmetic number, because the mean of its divisors is an integer number (14466801906900).

Almost surely, 2^{618481984684824} is an apocalyptic number.

It is an amenable number.

618481984684824 is an abundant number, since it is smaller than the sum of its proper divisors (1233268659398376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618481984684824 is a wasteful number, since it uses less digits than its factorization.

618481984684824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189388222 (or 189388212 counting only the distinct ones).

The product of its digits is 5435817984, while the sum is 81.

The spelling of 618481984684824 in words is "six hundred eighteen trillion, four hundred eighty-one billion, nine hundred eighty-four million, six hundred eighty-four thousand, eight hundred twenty-four".