26962968647 has 4 divisors (see below), whose sum is σ = 28382072280. Its totient is φ = 25543865016.

The previous prime is 26962968623. The next prime is 26962968707. The reversal of 26962968647 is 74686926962.

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 26962968647 - 2⁸ = 26962968391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26962968607) 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, 709551788 + ... + 709551825.

It is an arithmetic number, because the mean of its divisors is an integer number (7095518070).

Almost surely, 2^26962968647 is an apocalyptic number.

26962968647 is a deficient number, since it is larger than the sum of its proper divisors (1419103633).

26962968647 is a wasteful number, since it uses less digits than its factorization.

26962968647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419103632.

The product of its digits is 94058496, while the sum is 65.

The spelling of 26962968647 in words is "twenty-six billion, nine hundred sixty-two million, nine hundred sixty-eight thousand, six hundred forty-seven".