618996389604480 has 192 divisors, whose sum is σ = 2163224583112320. Its totient is φ = 163076960348160.

The previous prime is 618996389604367. The next prime is 618996389604487. The reversal of 618996389604480 is 84406983699816.

618996389604480 is a `hidden beast` number, since 6 + 1 + 8 + 9 + 96 + 3 + 89 + 6 + 0 + 448 + 0 = 666.

618996389604480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 618996389604480.

It is not an unprimeable number, because it can be changed into a prime (618996389604487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 646899336 + ... + 647855495.

It is an arithmetic number, because the mean of its divisors is an integer number (11266794703710).

Almost surely, 2^{618996389604480} is an apocalyptic number.

618996389604480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

618996389604480 is an abundant number, since it is smaller than the sum of its proper divisors (1544228193507840).

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

618996389604480 is a wasteful number, since it uses less digits than its factorization.

618996389604480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294754939 (or 1294754924 counting only the distinct ones).

The product of its (nonzero) digits is 3869835264, while the sum is 81.

The spelling of 618996389604480 in words is "six hundred eighteen trillion, nine hundred ninety-six billion, three hundred eighty-nine million, six hundred four thousand, four hundred eighty".