26885086665 has 32 divisors (see below), whose sum is σ = 43901308800. Its totient is φ = 14045391360.

The previous prime is 26885086643. The next prime is 26885086693. The reversal of 26885086665 is 56668058862.

It is not a de Polignac number, because 26885086665 - 2⁶ = 26885086601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26885086599 and 26885086608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194631 + ... + 302739.

It is an arithmetic number, because the mean of its divisors is an integer number (1371915900).

Almost surely, 2^26885086665 is an apocalyptic number.

It is an amenable number.

26885086665 is a deficient number, since it is larger than the sum of its proper divisors (17016222135).

26885086665 is a wasteful number, since it uses less digits than its factorization.

26885086665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108457.

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 26885086665 in words is "twenty-six billion, eight hundred eighty-five million, eighty-six thousand, six hundred sixty-five".