26216061261 has 8 divisors (see below), whose sum is σ = 37643575200. Its totient is φ = 16132960752.

The previous prime is 26216061259. The next prime is 26216061269. The reversal of 26216061261 is 16216061262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26216061261 - 2¹ = 26216061259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26216061269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336103311 + ... + 336103388.

It is an arithmetic number, because the mean of its divisors is an integer number (4705446900).

Almost surely, 2^26216061261 is an apocalyptic number.

It is an amenable number.

26216061261 is a deficient number, since it is larger than the sum of its proper divisors (11427513939).

26216061261 is a wasteful number, since it uses less digits than its factorization.

26216061261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672206715.

The product of its (nonzero) digits is 10368, while the sum is 33.

Subtracting from 26216061261 its reverse (16216061262), we obtain a palindrome (9999999999).

The spelling of 26216061261 in words is "twenty-six billion, two hundred sixteen million, sixty-one thousand, two hundred sixty-one".