1572905122643 has 2 divisors, whose sum is σ = 1572905122644. Its totient is φ = 1572905122642.

The previous prime is 1572905122627. The next prime is 1572905122651. The reversal of 1572905122643 is 3462215092751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1572905122643 - 2⁴ = 1572905122627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1572905122673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786452561321 + 786452561322.

It is an arithmetic number, because the mean of its divisors is an integer number (786452561322).

Almost surely, 2^{1572905122643} is an apocalyptic number.

1572905122643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1572905122643 is an equidigital number, since it uses as much as digits as its factorization.

1572905122643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 1572905122643 in words is "one trillion, five hundred seventy-two billion, nine hundred five million, one hundred twenty-two thousand, six hundred forty-three".