26927966865 has 16 divisors (see below), whose sum is σ = 43101750528. Its totient is φ = 14355914496.

The previous prime is 26927966861. The next prime is 26927966881. The reversal of 26927966865 is 56866972962.

It is not a de Polignac number, because 26927966865 - 2² = 26927966861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26927966796 and 26927966805.

It is not an unprimeable number, because it can be changed into a prime (26927966861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314824 + ... + 391113.

It is an arithmetic number, because the mean of its divisors is an integer number (2693859408).

Almost surely, 2^26927966865 is an apocalyptic number.

It is an amenable number.

26927966865 is a deficient number, since it is larger than the sum of its proper divisors (16173783663).

26927966865 is a wasteful number, since it uses less digits than its factorization.

26927966865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708488.

The product of its digits is 117573120, while the sum is 66.

The spelling of 26927966865 in words is "twenty-six billion, nine hundred twenty-seven million, nine hundred sixty-six thousand, eight hundred sixty-five".