74143728645323 has 2 divisors, whose sum is σ = 74143728645324. Its totient is φ = 74143728645322.

The previous prime is 74143728645241. The next prime is 74143728645341. The reversal of 74143728645323 is 32354682734147.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74143728645323 - 2²⁸ = 74143460209867 is a prime.

It is not a weakly prime, because it can be changed into another prime (74143728645383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37071864322661 + 37071864322662.

It is an arithmetic number, because the mean of its divisors is an integer number (37071864322662).

Almost surely, 2^{74143728645323} is an apocalyptic number.

74143728645323 is a deficient number, since it is larger than the sum of its proper divisors (1).

74143728645323 is an equidigital number, since it uses as much as digits as its factorization.

74143728645323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 59.

The spelling of 74143728645323 in words is "seventy-four trillion, one hundred forty-three billion, seven hundred twenty-eight million, six hundred forty-five thousand, three hundred twenty-three".