74143728645380 has 24 divisors (see below), whose sum is σ = 155702608208448. Its totient is φ = 29657343257568.

The previous prime is 74143728645341. The next prime is 74143728645383. The reversal of 74143728645380 is 8354682734147.

It is not an unprimeable number, because it can be changed into a prime (74143728645383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5114834 + ... + 13207913.

It is an arithmetic number, because the mean of its divisors is an integer number (6487608675352).

Almost surely, 2^{74143728645380} is an apocalyptic number.

It is an amenable number.

74143728645380 is an abundant number, since it is smaller than the sum of its proper divisors (81558879563068).

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

74143728645380 is a wasteful number, since it uses less digits than its factorization.

74143728645380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18525083 (or 18525081 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 62.

The spelling of 74143728645380 in words is "seventy-four trillion, one hundred forty-three billion, seven hundred twenty-eight million, six hundred forty-five thousand, three hundred eighty".