26560011531 has 16 divisors (see below), whose sum is σ = 35633283840. Its totient is φ = 17597030880.

The previous prime is 26560011503. The next prime is 26560011581. The reversal of 26560011531 is 13511006562.

It is not a de Polignac number, because 26560011531 - 2¹³ = 26560003339 is a prime.

It is a super-2 number, since 2×26560011531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26560011581) 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, 290421 + ... + 370761.

It is an arithmetic number, because the mean of its divisors is an integer number (2227080240).

Almost surely, 2^26560011531 is an apocalyptic number.

26560011531 is a deficient number, since it is larger than the sum of its proper divisors (9073272309).

26560011531 is a wasteful number, since it uses less digits than its factorization.

26560011531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81026.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 26560011531 in words is "twenty-six billion, five hundred sixty million, eleven thousand, five hundred thirty-one".