74984647848 has 256 divisors, whose sum is σ = 224308224000. Its totient is φ = 20655129600.

The previous prime is 74984647831. The next prime is 74984647849. The reversal of 74984647848 is 84874648947.

It is a super-2 number, since 2×74984647848² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74984647849) 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, 8777163 + ... + 8785701.

It is an arithmetic number, because the mean of its divisors is an integer number (876204000).

Almost surely, 2^74984647848 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 74984647848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112154112000).

74984647848 is an abundant number, since it is smaller than the sum of its proper divisors (149323576152).

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

74984647848 is a wasteful number, since it uses less digits than its factorization.

74984647848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656 (or 8652 counting only the distinct ones).

The product of its digits is 346816512, while the sum is 69.

The spelling of 74984647848 in words is "seventy-four billion, nine hundred eighty-four million, six hundred forty-seven thousand, eight hundred forty-eight".