26420210135505 has 16 divisors (see below), whose sum is σ = 46969262463360. Its totient is φ = 14090778738864.

The previous prime is 26420210135479. The next prime is 26420210135513. The reversal of 26420210135505 is 50553101202462.

26420210135505 is a `hidden beast` number, since 2 + 6 + 4 + 2 + 0 + 2 + 10 + 135 + 505 = 666.

It is not a de Polignac number, because 26420210135505 - 2⁹ = 26420210134993 is a prime.

It is a super-2 number, since 2×26420210135505² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26420210135505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97852629997 + ... + 97852630266.

It is an arithmetic number, because the mean of its divisors is an integer number (2935578903960).

Almost surely, 2^{26420210135505} is an apocalyptic number.

It is an amenable number.

26420210135505 is a deficient number, since it is larger than the sum of its proper divisors (20549052327855).

26420210135505 is a wasteful number, since it uses less digits than its factorization.

26420210135505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195705260277 (or 195705260271 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 26420210135505 its reverse (50553101202462), we get a palindrome (76973311337967).

The spelling of 26420210135505 in words is "twenty-six trillion, four hundred twenty billion, two hundred ten million, one hundred thirty-five thousand, five hundred five".