26939720197063 has 4 divisors (see below), whose sum is σ = 28111012379568. Its totient is φ = 25768428014560.

The previous prime is 26939720196979. The next prime is 26939720197127. The reversal of 26939720197063 is 36079102793962.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26939720197063 - 2⁹ = 26939720196551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26939720196986 and 26939720197004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939720197763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585646091218 + ... + 585646091263.

It is an arithmetic number, because the mean of its divisors is an integer number (7027753094892).

Almost surely, 2^{26939720197063} is an apocalyptic number.

26939720197063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

26939720197063 is a deficient number, since it is larger than the sum of its proper divisors (1171292182505).

26939720197063 is a wasteful number, since it uses less digits than its factorization.

26939720197063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171292182504.

The product of its (nonzero) digits is 46294416, while the sum is 64.

The spelling of 26939720197063 in words is "twenty-six trillion, nine hundred thirty-nine billion, seven hundred twenty million, one hundred ninety-seven thousand, sixty-three".