26122300561 has 24 divisors (see below), whose sum is σ = 30492171584. Its totient is φ = 21917079360.

The previous prime is 26122300559. The next prime is 26122300571. The reversal of 26122300561 is 16500322162.

It is not a de Polignac number, because 26122300561 - 2¹ = 26122300559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26122300541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14035771 + ... + 14037631.

Almost surely, 2^26122300561 is an apocalyptic number.

It is an amenable number.

26122300561 is a deficient number, since it is larger than the sum of its proper divisors (4369871023).

26122300561 is an equidigital number, since it uses as much as digits as its factorization.

26122300561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 26122300561 in words is "twenty-six billion, one hundred twenty-two million, three hundred thousand, five hundred sixty-one".