74469521448 has 288 divisors, whose sum is σ = 248978489760. Its totient is φ = 20781048960.

The previous prime is 74469521407. The next prime is 74469521449. The reversal of 74469521448 is 84412596447.

74469521448 is a `hidden beast` number, since 7 + 446 + 9 + 52 + 144 + 8 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 74469521394 and 74469521403.

It is not an unprimeable number, because it can be changed into a prime (74469521449) by changing a digit.

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 in 71 ways as a sum of consecutive naturals, for example, 4086918 + ... + 4105098.

It is an arithmetic number, because the mean of its divisors is an integer number (864508645).

Almost surely, 2^74469521448 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 74469521448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124489244880).

74469521448 is an abundant number, since it is smaller than the sum of its proper divisors (174508968312).

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

74469521448 is a wasteful number, since it uses less digits than its factorization.

74469521448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18259 (or 18236 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 74469521448 in words is "seventy-four billion, four hundred sixty-nine million, five hundred twenty-one thousand, four hundred forty-eight".