26400455131 has 2 divisors, whose sum is σ = 26400455132. Its totient is φ = 26400455130.

The previous prime is 26400455113. The next prime is 26400455143. The reversal of 26400455131 is 13155400462.

It is a happy number.

Together with previous prime (26400455113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26400455131 - 2²³ = 26392066523 is a prime.

It is a super-2 number, since 2×26400455131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26400455093 and 26400455102.

It is not a weakly prime, because it can be changed into another prime (26400455111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13200227565 + 13200227566.

It is an arithmetic number, because the mean of its divisors is an integer number (13200227566).

Almost surely, 2^26400455131 is an apocalyptic number.

26400455131 is a deficient number, since it is larger than the sum of its proper divisors (1).

26400455131 is an equidigital number, since it uses as much as digits as its factorization.

26400455131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 26400455131 its reverse (13155400462), we get a palindrome (39555855593).

The spelling of 26400455131 in words is "twenty-six billion, four hundred million, four hundred fifty-five thousand, one hundred thirty-one".