742473310309 has 2 divisors, whose sum is σ = 742473310310. Its totient is φ = 742473310308.

The previous prime is 742473310291. The next prime is 742473310343. The reversal of 742473310309 is 903013374247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700312901409 + 42160408900 = 836847^2 + 205330^2 .

It is a cyclic number.

It is not a de Polignac number, because 742473310309 - 2⁵ = 742473310277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742473311309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371236655154 + 371236655155.

It is an arithmetic number, because the mean of its divisors is an integer number (371236655155).

Almost surely, 2^742473310309 is an apocalyptic number.

It is an amenable number.

742473310309 is a deficient number, since it is larger than the sum of its proper divisors (1).

742473310309 is an equidigital number, since it uses as much as digits as its factorization.

742473310309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 742473310309 in words is "seven hundred forty-two billion, four hundred seventy-three million, three hundred ten thousand, three hundred nine".