26463405555 has 24 divisors (see below), whose sum is σ = 48568133952. Its totient is φ = 13283591424.

The previous prime is 26463405539. The next prime is 26463405557. The reversal of 26463405555 is 55550436462.

26463405555 is a `hidden beast` number, since 2 + 6 + 4 + 634 + 0 + 5 + 5 + 5 + 5 = 666.

It is not a de Polignac number, because 26463405555 - 2⁴ = 26463405539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 26463405555.

It is not an unprimeable number, because it can be changed into a prime (26463405557) 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 in 23 ways as a sum of consecutive naturals, for example, 17295579 + ... + 17297108.

It is an arithmetic number, because the mean of its divisors is an integer number (2023672248).

Almost surely, 2^26463405555 is an apocalyptic number.

26463405555 is a deficient number, since it is larger than the sum of its proper divisors (22104728397).

26463405555 is a wasteful number, since it uses less digits than its factorization.

26463405555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34592715 (or 34592712 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 26463405555 in words is "twenty-six billion, four hundred sixty-three million, four hundred five thousand, five hundred fifty-five".