26506438455 has 32 divisors (see below), whose sum is σ = 48481219584. Its totient is φ = 12114153216.

The previous prime is 26506438447. The next prime is 26506438477. The reversal of 26506438455 is 55483460562.

It is not a de Polignac number, because 26506438455 - 2³ = 26506438447 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 412854 + ... + 472716.

It is an arithmetic number, because the mean of its divisors is an integer number (1515038112).

Almost surely, 2^26506438455 is an apocalyptic number.

26506438455 is a deficient number, since it is larger than the sum of its proper divisors (21974781129).

26506438455 is a wasteful number, since it uses less digits than its factorization.

26506438455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64095.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 26506438455 in words is "twenty-six billion, five hundred six million, four hundred thirty-eight thousand, four hundred fifty-five".