26489652643 has 2 divisors, whose sum is σ = 26489652644. Its totient is φ = 26489652642.

The previous prime is 26489652601. The next prime is 26489652701. The reversal of 26489652643 is 34625698462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26489652643 - 2¹⁷ = 26489521571 is a prime.

It is not a weakly prime, because it can be changed into another prime (26489652043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13244826321 + 13244826322.

It is an arithmetic number, because the mean of its divisors is an integer number (13244826322).

Almost surely, 2^26489652643 is an apocalyptic number.

26489652643 is a deficient number, since it is larger than the sum of its proper divisors (1).

26489652643 is an equidigital number, since it uses as much as digits as its factorization.

26489652643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14929920, while the sum is 55.

The spelling of 26489652643 in words is "twenty-six billion, four hundred eighty-nine million, six hundred fifty-two thousand, six hundred forty-three".