742173382453 has 2 divisors, whose sum is σ = 742173382454. Its totient is φ = 742173382452.

The previous prime is 742173382417. The next prime is 742173382493. The reversal of 742173382453 is 354283371247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381618769009 + 360554613444 = 617753^2 + 600462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742173382453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742173382397 and 742173382406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742173382403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371086691226 + 371086691227.

It is an arithmetic number, because the mean of its divisors is an integer number (371086691227).

Almost surely, 2^742173382453 is an apocalyptic number.

It is an amenable number.

742173382453 is a deficient number, since it is larger than the sum of its proper divisors (1).

742173382453 is an equidigital number, since it uses as much as digits as its factorization.

742173382453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 49.

The spelling of 742173382453 in words is "seven hundred forty-two billion, one hundred seventy-three million, three hundred eighty-two thousand, four hundred fifty-three".