8618613561740 has 192 divisors, whose sum is σ = 22399232486400. Its totient is φ = 2712548127744.

The previous prime is 8618613561739. The next prime is 8618613561749. The reversal of 8618613561740 is 471653168168.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8618613561749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1053744971 + ... + 1053753149.

It is an arithmetic number, because the mean of its divisors is an integer number (116662669200).

Almost surely, 2^{8618613561740} 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 8618613561740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11199616243200).

8618613561740 is an abundant number, since it is smaller than the sum of its proper divisors (13780618924660).

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

8618613561740 is a wasteful number, since it uses less digits than its factorization.

8618613561740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11344 (or 11342 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 8618613561740 in words is "eight trillion, six hundred eighteen billion, six hundred thirteen million, five hundred sixty-one thousand, seven hundred forty".