74664819440 has 40 divisors (see below), whose sum is σ = 173998559808. Its totient is φ = 29796619520.

The previous prime is 74664819389. The next prime is 74664819461. The reversal of 74664819440 is 4491846647.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048247 + ... + 1117206.

Almost surely, 2^74664819440 is an apocalyptic number.

It is an amenable number.

74664819440 is an abundant number, since it is smaller than the sum of its proper divisors (99333740368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74664819440 is a wasteful number, since it uses less digits than its factorization.

74664819440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165897 (or 2165891 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 74664819440 in words is "seventy-four billion, six hundred sixty-four million, eight hundred nineteen thousand, four hundred forty".