26215413101 has 2 divisors, whose sum is σ = 26215413102. Its totient is φ = 26215413100.

The previous prime is 26215413083. The next prime is 26215413121. The reversal of 26215413101 is 10131451262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19523355076 + 6692058025 = 139726^2 + 81805^2 .

It is a cyclic number.

It is not a de Polignac number, because 26215413101 - 2¹⁸ = 26215150957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26215413121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13107706550 + 13107706551.

It is an arithmetic number, because the mean of its divisors is an integer number (13107706551).

Almost surely, 2^26215413101 is an apocalyptic number.

It is an amenable number.

26215413101 is a deficient number, since it is larger than the sum of its proper divisors (1).

26215413101 is an equidigital number, since it uses as much as digits as its factorization.

26215413101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 26215413101 its reverse (10131451262), we get a palindrome (36346864363).

The spelling of 26215413101 in words is "twenty-six billion, two hundred fifteen million, four hundred thirteen thousand, one hundred one".