426743805547 has 2 divisors, whose sum is σ = 426743805548. Its totient is φ = 426743805546.

The previous prime is 426743805503. The next prime is 426743805571. The reversal of 426743805547 is 745508347624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426743805547 is a prime.

It is a super-2 number, since 2×426743805547² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426743845547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213371902773 + 213371902774.

It is an arithmetic number, because the mean of its divisors is an integer number (213371902774).

Almost surely, 2^426743805547 is an apocalyptic number.

426743805547 is a deficient number, since it is larger than the sum of its proper divisors (1).

426743805547 is an equidigital number, since it uses as much as digits as its factorization.

426743805547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22579200, while the sum is 55.

The spelling of 426743805547 in words is "four hundred twenty-six billion, seven hundred forty-three million, eight hundred five thousand, five hundred forty-seven".