26328801985 has 16 divisors (see below), whose sum is σ = 31669698816. Its totient is φ = 21013003648.

The previous prime is 26328801971. The next prime is 26328802007. The reversal of 26328801985 is 58910882362.

It is a cyclic number.

It is not a de Polignac number, because 26328801985 - 2¹³ = 26328793793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7726152 + ... + 7729558.

It is an arithmetic number, because the mean of its divisors is an integer number (1979356176).

Almost surely, 2^26328801985 is an apocalyptic number.

It is an amenable number.

26328801985 is a deficient number, since it is larger than the sum of its proper divisors (5340896831).

26328801985 is a wasteful number, since it uses less digits than its factorization.

26328801985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 26328801985 in words is "twenty-six billion, three hundred twenty-eight million, eight hundred one thousand, nine hundred eighty-five".