74663535564 has 84 divisors (see below), whose sum is σ = 197733851784. Its totient is φ = 24655145472.

The previous prime is 74663535559. The next prime is 74663535637. The reversal of 74663535564 is 46553536647.

74663535564 is a `hidden beast` number, since 7 + 46 + 6 + 3 + 5 + 35 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 74663535564.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 192364 + ... + 431660.

It is an arithmetic number, because the mean of its divisors is an integer number (2353974426).

Almost surely, 2^74663535564 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 74663535564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98866925892).

74663535564 is an abundant number, since it is smaller than the sum of its proper divisors (123070316220).

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

74663535564 is a wasteful number, since it uses less digits than its factorization.

74663535564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239426 (or 239409 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 54.

The spelling of 74663535564 in words is "seventy-four billion, six hundred sixty-three million, five hundred thirty-five thousand, five hundred sixty-four".