74252978469 has 6 divisors (see below), whose sum is σ = 107254302246. Its totient is φ = 49501985640.

The previous prime is 74252978417. The next prime is 74252978477. The reversal of 74252978469 is 96487925247.

74252978469 is a `hidden beast` number, since 7 + 42 + 529 + 7 + 8 + 4 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74236086369 + 16892100 = 272463^2 + 4110^2 .

It is not a de Polignac number, because 74252978469 - 2¹⁶ = 74252912933 is a prime.

It is a super-2 number, since 2×74252978469² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74252978489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4125165462 + ... + 4125165479.

It is an arithmetic number, because the mean of its divisors is an integer number (17875717041).

Almost surely, 2^74252978469 is an apocalyptic number.

It is an amenable number.

74252978469 is a deficient number, since it is larger than the sum of its proper divisors (33001323777).

74252978469 is a wasteful number, since it uses less digits than its factorization.

74252978469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8250330947 (or 8250330944 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 74252978469 in words is "seventy-four billion, two hundred fifty-two million, nine hundred seventy-eight thousand, four hundred sixty-nine".