427193562643 has 2 divisors, whose sum is σ = 427193562644. Its totient is φ = 427193562642.

The previous prime is 427193562617. The next prime is 427193562671. The reversal of 427193562643 is 346265391724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427193562643 - 2³⁷ = 289754609171 is a prime.

It is a super-4 number, since 4×427193562643⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is not a weakly prime, because it can be changed into another prime (427193562443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213596781321 + 213596781322.

It is an arithmetic number, because the mean of its divisors is an integer number (213596781322).

Almost surely, 2^427193562643 is an apocalyptic number.

427193562643 is a deficient number, since it is larger than the sum of its proper divisors (1).

427193562643 is an equidigital number, since it uses as much as digits as its factorization.

427193562643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 52.

The spelling of 427193562643 in words is "four hundred twenty-seven billion, one hundred ninety-three million, five hundred sixty-two thousand, six hundred forty-three".