26517923851 has 2 divisors, whose sum is σ = 26517923852. Its totient is φ = 26517923850.

The previous prime is 26517923837. The next prime is 26517923879. The reversal of 26517923851 is 15832971562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26517923851 - 2⁹ = 26517923339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26517923795 and 26517923804.

It is not a weakly prime, because it can be changed into another prime (26517923891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13258961925 + 13258961926.

It is an arithmetic number, because the mean of its divisors is an integer number (13258961926).

Almost surely, 2^26517923851 is an apocalyptic number.

26517923851 is a deficient number, since it is larger than the sum of its proper divisors (1).

26517923851 is an equidigital number, since it uses as much as digits as its factorization.

26517923851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 49.

The spelling of 26517923851 in words is "twenty-six billion, five hundred seventeen million, nine hundred twenty-three thousand, eight hundred fifty-one".