26413723481 has 2 divisors, whose sum is σ = 26413723482. Its totient is φ = 26413723480.

The previous prime is 26413723447. The next prime is 26413723541. The reversal of 26413723481 is 18432731462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25331905600 + 1081817881 = 159160^2 + 32891^2 .

It is a cyclic number.

It is not a de Polignac number, because 26413723481 - 2⁶ = 26413723417 is a prime.

It is a super-2 number, since 2×26413723481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26413723081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13206861740 + 13206861741.

It is an arithmetic number, because the mean of its divisors is an integer number (13206861741).

Almost surely, 2^26413723481 is an apocalyptic number.

It is an amenable number.

26413723481 is a deficient number, since it is larger than the sum of its proper divisors (1).

26413723481 is an equidigital number, since it uses as much as digits as its factorization.

26413723481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The spelling of 26413723481 in words is "twenty-six billion, four hundred thirteen million, seven hundred twenty-three thousand, four hundred eighty-one".