1722402990043 has 2 divisors, whose sum is σ = 1722402990044. Its totient is φ = 1722402990042.

The previous prime is 1722402990023. The next prime is 1722402990047. The reversal of 1722402990043 is 3400992042271.

It is a strong prime.

It is an emirp because it is prime and its reverse (3400992042271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1722402990043 - 2¹³ = 1722402981851 is a prime.

It is not a weakly prime, because it can be changed into another prime (1722402990047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861201495021 + 861201495022.

It is an arithmetic number, because the mean of its divisors is an integer number (861201495022).

Almost surely, 2^{1722402990043} is an apocalyptic number.

1722402990043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1722402990043 is an equidigital number, since it uses as much as digits as its factorization.

1722402990043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 1722402990043 in words is "one trillion, seven hundred twenty-two billion, four hundred two million, nine hundred ninety thousand, forty-three".