26620324231 has 4 divisors (see below), whose sum is σ = 26627896792. Its totient is φ = 26612751672.

The previous prime is 26620324207. The next prime is 26620324273. The reversal of 26620324231 is 13242302662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26620324231 - 2³³ = 18030389639 is a prime.

It is a super-2 number, since 2×26620324231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26620324193 and 26620324202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26620322231) 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, 3781005 + ... + 3788038.

It is an arithmetic number, because the mean of its divisors is an integer number (6656974198).

Almost surely, 2^26620324231 is an apocalyptic number.

26620324231 is a deficient number, since it is larger than the sum of its proper divisors (7572561).

26620324231 is an equidigital number, since it uses as much as digits as its factorization.

26620324231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572560.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 26620324231 its reverse (13242302662), we get a palindrome (39862626893).

The spelling of 26620324231 in words is "twenty-six billion, six hundred twenty million, three hundred twenty-four thousand, two hundred thirty-one".