74245185216 has 84 divisors (see below), whose sum is σ = 218000985384. Its totient is φ = 24144768000.

The previous prime is 74245185169. The next prime is 74245185239. The reversal of 74245185216 is 61258154247.

74245185216 is a `hidden beast` number, since 7 + 424 + 5 + 1 + 8 + 5 + 216 = 666.

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 11 ways as a sum of consecutive naturals, for example, 1548310 + ... + 1595541.

It is an arithmetic number, because the mean of its divisors is an integer number (2595249826).

Almost surely, 2^74245185216 is an apocalyptic number.

It is an amenable number.

74245185216 is an abundant number, since it is smaller than the sum of its proper divisors (143755800168).

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

74245185216 is a wasteful number, since it uses less digits than its factorization.

74245185216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143910 (or 3143897 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The spelling of 74245185216 in words is "seventy-four billion, two hundred forty-five million, one hundred eighty-five thousand, two hundred sixteen".