74728423241 has 2 divisors, whose sum is σ = 74728423242. Its totient is φ = 74728423240.

The previous prime is 74728423163. The next prime is 74728423243. The reversal of 74728423241 is 14232482747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74728423225 + 16 = 273365^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 74728423241 - 2¹⁰ = 74728422217 is a prime.

Together with 74728423243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 74728423192 and 74728423201.

It is not a weakly prime, because it can be changed into another prime (74728423243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37364211620 + 37364211621.

It is an arithmetic number, because the mean of its divisors is an integer number (37364211621).

Almost surely, 2^74728423241 is an apocalyptic number.

It is an amenable number.

74728423241 is a deficient number, since it is larger than the sum of its proper divisors (1).

74728423241 is an equidigital number, since it uses as much as digits as its factorization.

74728423241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 44.

The spelling of 74728423241 in words is "seventy-four billion, seven hundred twenty-eight million, four hundred twenty-three thousand, two hundred forty-one".