74009994747 has 24 divisors (see below), whose sum is σ = 106874717184. Its totient is φ = 45536066784.

The previous prime is 74009994731. The next prime is 74009994809. The reversal of 74009994747 is 74749990047.

It is not a de Polignac number, because 74009994747 - 2⁴ = 74009994731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74009994647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3664158 + ... + 3684300.

It is an arithmetic number, because the mean of its divisors is an integer number (4453113216).

Almost surely, 2^74009994747 is an apocalyptic number.

74009994747 is a deficient number, since it is larger than the sum of its proper divisors (32864722437).

74009994747 is a wasteful number, since it uses less digits than its factorization.

74009994747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27419 (or 27406 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 74009994747 in words is "seventy-four billion, nine million, nine hundred ninety-four thousand, seven hundred forty-seven".