26080500561 has 8 divisors (see below), whose sum is σ = 36285913920. Its totient is φ = 16631043792.

The previous prime is 26080500557. The next prime is 26080500569. The reversal of 26080500561 is 16500508062.

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

It is not a de Polignac number, because 26080500561 - 2² = 26080500557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26080500569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188989066 + ... + 188989203.

It is an arithmetic number, because the mean of its divisors is an integer number (4535739240).

Almost surely, 2^26080500561 is an apocalyptic number.

It is an amenable number.

26080500561 is a deficient number, since it is larger than the sum of its proper divisors (10205413359).

26080500561 is a wasteful number, since it uses less digits than its factorization.

26080500561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377978295.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 26080500561 in words is "twenty-six billion, eighty million, five hundred thousand, five hundred sixty-one".