26551540441431 has 12 divisors (see below), whose sum is σ = 38404547363208. Its totient is φ = 17676878215824.

The previous prime is 26551540441429. The next prime is 26551540441441. The reversal of 26551540441431 is 13414404515562.

26551540441431 is a `hidden beast` number, since 2 + 6 + 5 + 51 + 540 + 44 + 14 + 3 + 1 = 666.

It is not a de Polignac number, because 26551540441431 - 2¹ = 26551540441429 is a prime.

It is a super-2 number, since 2×26551540441431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26551540441441) 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, 2012388465 + ... + 2012401658.

It is an arithmetic number, because the mean of its divisors is an integer number (3200378946934).

Almost surely, 2^{26551540441431} is an apocalyptic number.

26551540441431 is a deficient number, since it is larger than the sum of its proper divisors (11853006921777).

26551540441431 is a wasteful number, since it uses less digits than its factorization.

26551540441431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024790862 (or 4024790859 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

Adding to 26551540441431 its reverse (13414404515562), we get a palindrome (39965944956993).

The spelling of 26551540441431 in words is "twenty-six trillion, five hundred fifty-one billion, five hundred forty million, four hundred forty-one thousand, four hundred thirty-one".