74821647892 has 12 divisors (see below), whose sum is σ = 137829351520. Its totient is φ = 35441833176.

The previous prime is 74821647869. The next prime is 74821647991. The reversal of 74821647892 is 29874612847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492247608 + ... + 492247759.

Almost surely, 2^74821647892 is an apocalyptic number.

It is an amenable number.

74821647892 is a deficient number, since it is larger than the sum of its proper divisors (63007703628).

74821647892 is a wasteful number, since it uses less digits than its factorization.

74821647892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984495390 (or 984495388 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The spelling of 74821647892 in words is "seventy-four billion, eight hundred twenty-one million, six hundred forty-seven thousand, eight hundred ninety-two".