74227968646 has 8 divisors (see below), whose sum is σ = 119906718624. Its totient is φ = 34259062440.

The previous prime is 74227968599. The next prime is 74227968671. The reversal of 74227968646 is 64686972247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1427460910 + ... + 1427460961.

It is an arithmetic number, because the mean of its divisors is an integer number (14988339828).

Almost surely, 2^74227968646 is an apocalyptic number.

74227968646 is a deficient number, since it is larger than the sum of its proper divisors (45678749978).

74227968646 is a wasteful number, since it uses less digits than its factorization.

74227968646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854921886.

The product of its digits is 48771072, while the sum is 61.

The spelling of 74227968646 in words is "seventy-four billion, two hundred twenty-seven million, nine hundred sixty-eight thousand, six hundred forty-six".