26645110401231 has 12 divisors (see below), whose sum is σ = 43985579075152. Its totient is φ = 15225777372096.

The previous prime is 26645110401211. The next prime is 26645110401271. The reversal of 26645110401231 is 13210401154662.

26645110401231 is a `hidden beast` number, since 2 + 6 + 6 + 4 + 5 + 1 + 10 + 401 + 231 = 666.

It is not a de Polignac number, because 26645110401231 - 2²⁹ = 26644573530319 is a prime.

It is a super-2 number, since 2×26645110401231² (a number of 28 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 (26645110401211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211469130106 + ... + 211469130231.

Almost surely, 2^{26645110401231} is an apocalyptic number.

26645110401231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26645110401231 is a deficient number, since it is larger than the sum of its proper divisors (17340468673921).

26645110401231 is a wasteful number, since it uses less digits than its factorization.

26645110401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422938260350 (or 422938260347 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 26645110401231 its reverse (13210401154662), we get a palindrome (39855511555893).

The spelling of 26645110401231 in words is "twenty-six trillion, six hundred forty-five billion, one hundred ten million, four hundred one thousand, two hundred thirty-one".