26985582641 has 8 divisors (see below), whose sum is σ = 27147732480. Its totient is φ = 26823687408.

The previous prime is 26985582593. The next prime is 26985582691. The reversal of 26985582641 is 14628558962.

It is a happy number.

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 26985582641 - 2²² = 26981388337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26985582691) 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, 151130 + ... + 277148.

It is an arithmetic number, because the mean of its divisors is an integer number (3393466560).

Almost surely, 2^26985582641 is an apocalyptic number.

It is an amenable number.

26985582641 is a deficient number, since it is larger than the sum of its proper divisors (162149839).

26985582641 is a wasteful number, since it uses less digits than its factorization.

26985582641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127303.

The product of its digits is 8294400, while the sum is 56.

The spelling of 26985582641 in words is "twenty-six billion, nine hundred eighty-five million, five hundred eighty-two thousand, six hundred forty-one".