26197266459 has 72 divisors (see below), whose sum is σ = 44658031680. Its totient is φ = 13611229632.

The previous prime is 26197266449. The next prime is 26197266497. The reversal of 26197266459 is 95466279162.

It is not a de Polignac number, because 26197266459 - 2²¹ = 26195169307 is a prime.

It is a super-3 number, since 3×26197266459³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26197266399 and 26197266408.

It is not an unprimeable number, because it can be changed into a prime (26197266439) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1656612 + ... + 1672350.

It is an arithmetic number, because the mean of its divisors is an integer number (620250440).

Almost surely, 2^26197266459 is an apocalyptic number.

26197266459 is a deficient number, since it is larger than the sum of its proper divisors (18460765221).

26197266459 is a wasteful number, since it uses less digits than its factorization.

26197266459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15849 (or 15829 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The spelling of 26197266459 in words is "twenty-six billion, one hundred ninety-seven million, two hundred sixty-six thousand, four hundred fifty-nine".