426532218643 has 2 divisors, whose sum is σ = 426532218644. Its totient is φ = 426532218642.

The previous prime is 426532218557. The next prime is 426532218667. The reversal of 426532218643 is 346812235624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426532218643 - 2²¹ = 426530121491 is a prime.

It is a super-2 number, since 2×426532218643² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 426532218593 and 426532218602.

It is not a weakly prime, because it can be changed into another prime (426532218043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213266109321 + 213266109322.

It is an arithmetic number, because the mean of its divisors is an integer number (213266109322).

Almost surely, 2^426532218643 is an apocalyptic number.

426532218643 is a deficient number, since it is larger than the sum of its proper divisors (1).

426532218643 is an equidigital number, since it uses as much as digits as its factorization.

426532218643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 46.

The spelling of 426532218643 in words is "four hundred twenty-six billion, five hundred thirty-two million, two hundred eighteen thousand, six hundred forty-three".