74471490720 has 336 divisors, whose sum is σ = 287773329312. Its totient is φ = 18053383680.

The previous prime is 74471490701. The next prime is 74471490727. The reversal of 74471490720 is 2709417447.

74471490720 is a `hidden beast` number, since 74 + 4 + 71 + 490 + 7 + 20 = 666.

It is a super-2 number, since 2×74471490720² (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 (74471490727) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1254019 + ... + 1312061.

It is an arithmetic number, because the mean of its divisors is an integer number (856468242).

Almost surely, 2^74471490720 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 74471490720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143886664656).

74471490720 is an abundant number, since it is smaller than the sum of its proper divisors (213301838592).

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

74471490720 is a wasteful number, since it uses less digits than its factorization.

74471490720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58087 (or 58064 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 74471490720 in words is "seventy-four billion, four hundred seventy-one million, four hundred ninety thousand, seven hundred twenty".