74812643228 has 12 divisors (see below), whose sum is σ = 130944634632. Its totient is φ = 37399890480.

The previous prime is 74812643221. The next prime is 74812643267. The reversal of 74812643228 is 82234621847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74812643221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1581563 + ... + 1628178.

It is an arithmetic number, because the mean of its divisors is an integer number (10912052886).

Almost surely, 2^74812643228 is an apocalyptic number.

It is an amenable number.

74812643228 is a deficient number, since it is larger than the sum of its proper divisors (56131991404).

74812643228 is a wasteful number, since it uses less digits than its factorization.

74812643228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215572 (or 3215570 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The spelling of 74812643228 in words is "seventy-four billion, eight hundred twelve million, six hundred forty-three thousand, two hundred twenty-eight".