26223260316531 has 16 divisors (see below), whose sum is σ = 35055999123840. Its totient is φ = 17436358620800.

The previous prime is 26223260316511. The next prime is 26223260316559. The reversal of 26223260316531 is 13561306232262.

It is a cyclic number.

It is not a de Polignac number, because 26223260316531 - 2⁷ = 26223260316403 is a prime.

It is a super-2 number, since 2×26223260316531² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26223260316511) 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, 8100640 + ... + 10865858.

It is an arithmetic number, because the mean of its divisors is an integer number (2190999945240).

Almost surely, 2^{26223260316531} is an apocalyptic number.

26223260316531 is a deficient number, since it is larger than the sum of its proper divisors (8832738807309).

26223260316531 is a wasteful number, since it uses less digits than its factorization.

26223260316531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773506.

The product of its (nonzero) digits is 466560, while the sum is 42.

Adding to 26223260316531 its reverse (13561306232262), we get a palindrome (39784566548793).

The spelling of 26223260316531 in words is "twenty-six trillion, two hundred twenty-three billion, two hundred sixty million, three hundred sixteen thousand, five hundred thirty-one".