74320573264540 has 24 divisors (see below), whose sum is σ = 157264602363792. Its totient is φ = 29501296256640.

The previous prime is 74320573264519. The next prime is 74320573264541. The reversal of 74320573264540 is 4546237502347.

It is a super-2 number, since 2×74320573264540² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74320573264541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14183312889 + ... + 14183318128.

It is an arithmetic number, because the mean of its divisors is an integer number (6552691765158).

Almost surely, 2^{74320573264540} is an apocalyptic number.

It is an amenable number.

74320573264540 is an abundant number, since it is smaller than the sum of its proper divisors (82944029099252).

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

74320573264540 is a wasteful number, since it uses less digits than its factorization.

74320573264540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28366631157 (or 28366631155 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 52.

The spelling of 74320573264540 in words is "seventy-four trillion, three hundred twenty billion, five hundred seventy-three million, two hundred sixty-four thousand, five hundred forty".