1722442237343 has 4 divisors (see below), whose sum is σ = 1813097091960. Its totient is φ = 1631787382728.

The previous prime is 1722442237339. The next prime is 1722442237363. The reversal of 1722442237343 is 3437322442271.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1722442237343 - 2² = 1722442237339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1722442237294 and 1722442237303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1722442237363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45327427280 + ... + 45327427317.

It is an arithmetic number, because the mean of its divisors is an integer number (453274272990).

Almost surely, 2^{1722442237343} is an apocalyptic number.

1722442237343 is a deficient number, since it is larger than the sum of its proper divisors (90654854617).

1722442237343 is an equidigital number, since it uses as much as digits as its factorization.

1722442237343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90654854616.

The product of its digits is 1354752, while the sum is 44.

The spelling of 1722442237343 in words is "one trillion, seven hundred twenty-two billion, four hundred forty-two million, two hundred thirty-seven thousand, three hundred forty-three".