326420524226261 has 4 divisors (see below), whose sum is σ = 326552838993312. Its totient is φ = 326288209459212.

The previous prime is 326420524226213. The next prime is 326420524226393. The reversal of 326420524226261 is 162622425024623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 326420524226261 - 2²⁶ = 326420457117397 is a prime.

It is a super-2 number, since 2×326420524226261² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326420524225261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66157379825 + ... + 66157384758.

It is an arithmetic number, because the mean of its divisors is an integer number (81638209748328).

Almost surely, 2^{326420524226261} is an apocalyptic number.

It is an amenable number.

326420524226261 is a deficient number, since it is larger than the sum of its proper divisors (132314767051).

326420524226261 is a wasteful number, since it uses less digits than its factorization.

326420524226261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132314767050.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 326420524226261 in words is "three hundred twenty-six trillion, four hundred twenty billion, five hundred twenty-four million, two hundred twenty-six thousand, two hundred sixty-one".