426414424414721 has 2 divisors, whose sum is σ = 426414424414722. Its totient is φ = 426414424414720.

The previous prime is 426414424414591. The next prime is 426414424414729. The reversal of 426414424414721 is 127414424414624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 398199470764096 + 28214953650625 = 19954936^2 + 5311775^2 .

It is a cyclic number.

It is not a de Polignac number, because 426414424414721 - 2⁴⁶ = 356045680237057 is a prime.

It is a super-2 number, since 2×426414424414721² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426414424414721.

It is not a weakly prime, because it can be changed into another prime (426414424414729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213207212207360 + 213207212207361.

It is an arithmetic number, because the mean of its divisors is an integer number (213207212207361).

Almost surely, 2^{426414424414721} is an apocalyptic number.

It is an amenable number.

426414424414721 is a deficient number, since it is larger than the sum of its proper divisors (1).

426414424414721 is an equidigital number, since it uses as much as digits as its factorization.

426414424414721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5505024, while the sum is 50.

The spelling of 426414424414721 in words is "four hundred twenty-six trillion, four hundred fourteen billion, four hundred twenty-four million, four hundred fourteen thousand, seven hundred twenty-one".