26328808601 has 4 divisors (see below), whose sum is σ = 26329638912. Its totient is φ = 26327978292.

The previous prime is 26328808567. The next prime is 26328808609. The reversal of 26328808601 is 10680882362.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10680882362 = 2 ⋅5340441181.

It is a cyclic number.

It is not a de Polignac number, because 26328808601 - 2³⁴ = 9148939417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26328808609) 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, 365621 + ... + 431666.

It is an arithmetic number, because the mean of its divisors is an integer number (6582409728).

Almost surely, 2^26328808601 is an apocalyptic number.

It is an amenable number.

26328808601 is a deficient number, since it is larger than the sum of its proper divisors (830311).

26328808601 is an equidigital number, since it uses as much as digits as its factorization.

26328808601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830310.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 26328808601 in words is "twenty-six billion, three hundred twenty-eight million, eight hundred eight thousand, six hundred one".