618054957261684 has 144 divisors (see below), whose sum is σ = 1633271391775296. Its totient is φ = 196899686438400.

The previous prime is 618054957261667. The next prime is 618054957261697. The reversal of 618054957261684 is 486162759450816.

618054957261684 is a `hidden beast` number, since 6 + 1 + 8 + 0 + 5 + 49 + 572 + 6 + 1 + 6 + 8 + 4 = 666.

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 47 ways as a sum of consecutive naturals, for example, 634819 + ... + 35164085.

It is an arithmetic number, because the mean of its divisors is an integer number (11342162442884).

Almost surely, 2^{618054957261684} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618054957261684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816635695887648).

618054957261684 is an abundant number, since it is smaller than the sum of its proper divisors (1015216434513612).

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

618054957261684 is a wasteful number, since it uses less digits than its factorization.

618054957261684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34529566 (or 34529561 counting only the distinct ones).

The product of its (nonzero) digits is 696729600, while the sum is 72.

The spelling of 618054957261684 in words is "six hundred eighteen trillion, fifty-four billion, nine hundred fifty-seven million, two hundred sixty-one thousand, six hundred eighty-four".