74143728645383 has 2 divisors, whose sum is σ = 74143728645384. Its totient is φ = 74143728645382.

The previous prime is 74143728645341. The next prime is 74143728645409. The reversal of 74143728645383 is 38354682734147.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74143728645383 - 2¹⁴ = 74143728628999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74143728645323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37071864322691 + 37071864322692.

It is an arithmetic number, because the mean of its divisors is an integer number (37071864322692).

Almost surely, 2^{74143728645383} is an apocalyptic number.

74143728645383 is a deficient number, since it is larger than the sum of its proper divisors (1).

74143728645383 is an equidigital number, since it uses as much as digits as its factorization.

74143728645383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 325140480, while the sum is 65.

The spelling of 74143728645383 in words is "seventy-four trillion, one hundred forty-three billion, seven hundred twenty-eight million, six hundred forty-five thousand, three hundred eighty-three".