74573441280 has 432 divisors, whose sum is σ = 286844952576. Its totient is φ = 17763287040.

The previous prime is 74573441251. The next prime is 74573441287. The reversal of 74573441280 is 8214437547.

74573441280 is a `hidden beast` number, since 74 + 573 + 4 + 4 + 1 + 2 + 8 + 0 = 666.

It is a super-2 number, since 2×74573441280² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (74573441287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4634529 + ... + 4650591.

Almost surely, 2^74573441280 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 74573441280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143422476288).

74573441280 is an abundant number, since it is smaller than the sum of its proper divisors (212271511296).

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

74573441280 is a wasteful number, since it uses less digits than its factorization.

74573441280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16134 (or 16117 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 74573441280 in words is "seventy-four billion, five hundred seventy-three million, four hundred forty-one thousand, two hundred eighty".