74966439999 has 32 divisors (see below), whose sum is σ = 110065734144. Its totient is φ = 45008122880.

The previous prime is 74966439971. The next prime is 74966440057. The reversal of 74966439999 is 99993466947.

It is a Cunningham number, because it is equal to 273800²-1.

It is a cyclic number.

It is not a de Polignac number, because 74966439999 - 2⁷ = 74966439871 is a prime.

It is a super-2 number, since 2×74966439999² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74966439999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74966439949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9031219 + ... + 9039515.

It is an arithmetic number, because the mean of its divisors is an integer number (3439554192).

Almost surely, 2^74966439999 is an apocalyptic number.

74966439999 is a deficient number, since it is larger than the sum of its proper divisors (35099294145).

74966439999 is a wasteful number, since it uses less digits than its factorization.

74966439999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10847.

The product of its digits is 714256704, while the sum is 75.

The spelling of 74966439999 in words is "seventy-four billion, nine hundred sixty-six million, four hundred thirty-nine thousand, nine hundred ninety-nine".