74404704728 has 16 divisors (see below), whose sum is σ = 142477094880. Its totient is φ = 36410812768.

The previous prime is 74404704721. The next prime is 74404704743. The reversal of 74404704728 is 82740740447.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74404704721) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 98942051 + ... + 98942802.

It is an arithmetic number, because the mean of its divisors is an integer number (8904818430).

Almost surely, 2^74404704728 is an apocalyptic number.

It is an amenable number.

74404704728 is a deficient number, since it is larger than the sum of its proper divisors (68072390152).

74404704728 is a wasteful number, since it uses less digits than its factorization.

74404704728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197884906 (or 197884902 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 47.

The spelling of 74404704728 in words is "seventy-four billion, four hundred four million, seven hundred four thousand, seven hundred twenty-eight".