426802749161 has 2 divisors, whose sum is σ = 426802749162. Its totient is φ = 426802749160.

The previous prime is 426802749137. The next prime is 426802749221. The reversal of 426802749161 is 161947208624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410552873536 + 16249875625 = 640744^2 + 127475^2 .

It is a cyclic number.

It is not a de Polignac number, because 426802749161 - 2²⁶ = 426735640297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (426802149161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213401374580 + 213401374581.

It is an arithmetic number, because the mean of its divisors is an integer number (213401374581).

Almost surely, 2^426802749161 is an apocalyptic number.

It is an amenable number.

426802749161 is a deficient number, since it is larger than the sum of its proper divisors (1).

426802749161 is an equidigital number, since it uses as much as digits as its factorization.

426802749161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 426802749161 in words is "four hundred twenty-six billion, eight hundred two million, seven hundred forty-nine thousand, one hundred sixty-one".