26142089328961 has 4 divisors (see below), whose sum is σ = 26142101789524. Its totient is φ = 26142076868400.

The previous prime is 26142089328923. The next prime is 26142089328989. The reversal of 26142089328961 is 16982398024162.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24463717258561 + 1678372070400 = 4946081^2 + 1295520^2 .

It is a cyclic number.

It is not a de Polignac number, because 26142089328961 - 2⁷ = 26142089328833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26142089328961.

It is not an unprimeable number, because it can be changed into a prime (26142089328911) 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, 2225010 + ... + 7565371.

It is an arithmetic number, because the mean of its divisors is an integer number (6535525447381).

Almost surely, 2^{26142089328961} is an apocalyptic number.

It is an amenable number.

26142089328961 is a deficient number, since it is larger than the sum of its proper divisors (12460563).

26142089328961 is an equidigital number, since it uses as much as digits as its factorization.

26142089328961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460562.

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 26142089328961 in words is "twenty-six trillion, one hundred forty-two billion, eighty-nine million, three hundred twenty-eight thousand, nine hundred sixty-one".