74520259416 has 128 divisors (see below), whose sum is σ = 214064640000. Its totient is φ = 23995319040.

The previous prime is 74520259399. The next prime is 74520259421. The reversal of 74520259416 is 61495202547.

74520259416 is a `hidden beast` number, since 7 + 4 + 52 + 0 + 2 + 594 + 1 + 6 = 666.

It is a super-2 number, since 2×74520259416² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3800245 + ... + 3819803.

It is an arithmetic number, because the mean of its divisors is an integer number (1672380000).

Almost surely, 2^74520259416 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 74520259416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107032320000).

74520259416 is an abundant number, since it is smaller than the sum of its proper divisors (139544380584).

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

74520259416 is a wasteful number, since it uses less digits than its factorization.

74520259416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20174 (or 20164 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 74520259416 in words is "seventy-four billion, five hundred twenty million, two hundred fifty-nine thousand, four hundred sixteen".