26943392420987 has 16 divisors (see below), whose sum is σ = 31581534129600. Its totient is φ = 22503881064960.

The previous prime is 26943392420977. The next prime is 26943392421013. The reversal of 26943392420987 is 78902429334962.

It is a cyclic number.

It is not a de Polignac number, because 26943392420987 - 2¹² = 26943392416891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26943392420977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56384162 + ... + 56860007.

It is an arithmetic number, because the mean of its divisors is an integer number (1973845883100).

Almost surely, 2^{26943392420987} is an apocalyptic number.

26943392420987 is a deficient number, since it is larger than the sum of its proper divisors (4638141708613).

26943392420987 is a wasteful number, since it uses less digits than its factorization.

26943392420987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113245046.

The product of its (nonzero) digits is 282175488, while the sum is 68.

The spelling of 26943392420987 in words is "twenty-six trillion, nine hundred forty-three billion, three hundred ninety-two million, four hundred twenty thousand, nine hundred eighty-seven".