618818135504 has 10 divisors (see below), whose sum is σ = 1198960137570. Its totient is φ = 309409067744.

The previous prime is 618818135473. The next prime is 618818135543. The reversal of 618818135504 is 405531818816.

It can be written as a sum of positive squares in only one way, i.e., 571838440000 + 46979695504 = 756200^2 + 216748^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19338066719 + ... + 19338066750.

It is an arithmetic number, because the mean of its divisors is an integer number (119896013757).

Almost surely, 2^618818135504 is an apocalyptic number.

It is an amenable number.

618818135504 is a deficient number, since it is larger than the sum of its proper divisors (580142002066).

618818135504 is a wasteful number, since it uses less digits than its factorization.

618818135504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38676133477 (or 38676133471 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 618818135504 in words is "six hundred eighteen billion, eight hundred eighteen million, one hundred thirty-five thousand, five hundred four".