26189835356161 has 4 divisors (see below), whose sum is σ = 26378251438000. Its totient is φ = 26001419274324.

The previous prime is 26189835356147. The next prime is 26189835356213. The reversal of 26189835356161 is 16165353898162.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26189835356161 - 2¹⁷ = 26189835225089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26189835356093 and 26189835356102.

It is not an unprimeable number, because it can be changed into a prime (26189835356761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94208040711 + ... + 94208040988.

It is an arithmetic number, because the mean of its divisors is an integer number (6594562859500).

Almost surely, 2^{26189835356161} is an apocalyptic number.

It is an amenable number.

26189835356161 is a deficient number, since it is larger than the sum of its proper divisors (188416081839).

26189835356161 is a wasteful number, since it uses less digits than its factorization.

26189835356161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188416081838.

The product of its digits is 55987200, while the sum is 64.

The spelling of 26189835356161 in words is "twenty-six trillion, one hundred eighty-nine billion, eight hundred thirty-five million, three hundred fifty-six thousand, one hundred sixty-one".