26662208641 has 8 divisors (see below), whose sum is σ = 28067709600. Its totient is φ = 25256930400.

The previous prime is 26662208633. The next prime is 26662208653. The reversal of 26662208641 is 14680226662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26662208641 - 2³ = 26662208633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26662208341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226866 + ... + 323716.

It is an arithmetic number, because the mean of its divisors is an integer number (3508463700).

Almost surely, 2^26662208641 is an apocalyptic number.

It is an amenable number.

26662208641 is a deficient number, since it is larger than the sum of its proper divisors (1405500959).

26662208641 is a wasteful number, since it uses less digits than its factorization.

26662208641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111359.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 26662208641 in words is "twenty-six billion, six hundred sixty-two million, two hundred eight thousand, six hundred forty-one".