426513211081 has 16 divisors (see below), whose sum is σ = 435310958160. Its totient is φ = 417743988480.

The previous prime is 426513211031. The next prime is 426513211207. The reversal of 426513211081 is 180112315624.

It can be written as a sum of positive squares in 8 ways, for example, as 75012445456 + 351500765625 = 273884^2 + 592875^2 .

It is a cyclic number.

It is not a de Polignac number, because 426513211081 - 2¹¹ = 426513209033 is a prime.

It is a super-3 number, since 3×426513211081³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426513211031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100852275 + ... + 100856503.

It is an arithmetic number, because the mean of its divisors is an integer number (27206934885).

Almost surely, 2^426513211081 is an apocalyptic number.

It is an amenable number.

426513211081 is a deficient number, since it is larger than the sum of its proper divisors (8797747079).

426513211081 is a wasteful number, since it uses less digits than its factorization.

426513211081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 426513211081 in words is "four hundred twenty-six billion, five hundred thirteen million, two hundred eleven thousand, eighty-one".