74474942769 has 6 divisors (see below), whose sum is σ = 107574917346. Its totient is φ = 49649961840.

The previous prime is 74474942753. The next prime is 74474942831. The reversal of 74474942769 is 96724947447.

74474942769 is a `hidden beast` number, since 7 + 4 + 474 + 94 + 2 + 76 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40920030369 + 33554912400 = 202287^2 + 183180^2 .

It is not a de Polignac number, because 74474942769 - 2⁴ = 74474942753 is a prime.

It is a super-2 number, since 2×74474942769² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74474941769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4137496812 + ... + 4137496829.

It is an arithmetic number, because the mean of its divisors is an integer number (17929152891).

Almost surely, 2^74474942769 is an apocalyptic number.

It is an amenable number.

74474942769 is a deficient number, since it is larger than the sum of its proper divisors (33099974577).

74474942769 is a wasteful number, since it uses less digits than its factorization.

74474942769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274993647 (or 8274993644 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 63.

The spelling of 74474942769 in words is "seventy-four billion, four hundred seventy-four million, nine hundred forty-two thousand, seven hundred sixty-nine".