26479541813 has 2 divisors, whose sum is σ = 26479541814. Its totient is φ = 26479541812.

The previous prime is 26479541807. The next prime is 26479541827. The reversal of 26479541813 is 31814597462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17684478289 + 8795063524 = 132983^2 + 93782^2 .

It is a cyclic number.

It is not a de Polignac number, because 26479541813 - 2⁴ = 26479541797 is a prime.

It is a super-2 number, since 2×26479541813² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26479541113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13239770906 + 13239770907.

It is an arithmetic number, because the mean of its divisors is an integer number (13239770907).

Almost surely, 2^26479541813 is an apocalyptic number.

It is an amenable number.

26479541813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26479541813 is an equidigital number, since it uses as much as digits as its factorization.

26479541813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The spelling of 26479541813 in words is "twenty-six billion, four hundred seventy-nine million, five hundred forty-one thousand, eight hundred thirteen".