74128670882 has 30 divisors (see below), whose sum is σ = 129750479313. Its totient is φ = 31761344496.

The previous prime is 74128670843. The next prime is 74128670899. The reversal of 74128670882 is 28807682147.

It can be written as a sum of positive squares in 2 ways, for example, as 62916190561 + 11212480321 = 250831^2 + 105889^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=192521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 18865094 + ... + 18869022.

Almost surely, 2^74128670882 is an apocalyptic number.

74128670882 is a deficient number, since it is larger than the sum of its proper divisors (55621808431).

74128670882 is an frugal number, since it uses more digits than its factorization.

74128670882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888 (or 3938 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The spelling of 74128670882 in words is "seventy-four billion, one hundred twenty-eight million, six hundred seventy thousand, eight hundred eighty-two".