1625068309643 has 2 divisors, whose sum is σ = 1625068309644. Its totient is φ = 1625068309642.

The previous prime is 1625068309609. The next prime is 1625068309693. The reversal of 1625068309643 is 3469038605261.

It is a weak prime.

It is an emirp because it is prime and its reverse (3469038605261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1625068309643 - 2²⁰ = 1625067261067 is a prime.

It is a super-2 number, since 2×1625068309643² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1625068309603) 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, 812534154821 + 812534154822.

It is an arithmetic number, because the mean of its divisors is an integer number (812534154822).

Almost surely, 2^{1625068309643} is an apocalyptic number.

1625068309643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625068309643 is an equidigital number, since it uses as much as digits as its factorization.

1625068309643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 1625068309643 in words is "one trillion, six hundred twenty-five billion, sixty-eight million, three hundred nine thousand, six hundred forty-three".