74924476809 has 16 divisors (see below), whose sum is σ = 122952988032. Its totient is φ = 39520603008.

The previous prime is 74924476787. The next prime is 74924476811. The reversal of 74924476809 is 90867442947.

It is not a de Polignac number, because 74924476809 - 2¹¹ = 74924474761 is a prime.

It is a super-2 number, since 2×74924476809² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74924476889) 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 15 ways as a sum of consecutive naturals, for example, 137224044 + ... + 137224589.

It is an arithmetic number, because the mean of its divisors is an integer number (7684561752).

Almost surely, 2^74924476809 is an apocalyptic number.

It is an amenable number.

74924476809 is a deficient number, since it is larger than the sum of its proper divisors (48028511223).

74924476809 is a wasteful number, since it uses less digits than its factorization.

74924476809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274448656.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 74924476809 in words is "seventy-four billion, nine hundred twenty-four million, four hundred seventy-six thousand, eight hundred nine".