26540643262234 has 8 divisors (see below), whose sum is σ = 40101555878388. Its totient is φ = 13173457969440.

The previous prime is 26540643262169. The next prime is 26540643262247. The reversal of 26540643262234 is 43226234604562.

It can be written as a sum of positive squares in 2 ways, for example, as 25654701112209 + 885942150025 = 5065047^2 + 941245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 48431830497 + ... + 48431831044.

Almost surely, 2^{26540643262234} is an apocalyptic number.

26540643262234 is a deficient number, since it is larger than the sum of its proper divisors (13560912616154).

26540643262234 is a wasteful number, since it uses less digits than its factorization.

26540643262234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96863661680.

The product of its (nonzero) digits is 9953280, while the sum is 49.

Adding to 26540643262234 its reverse (43226234604562), we get a palindrome (69766877866796).

The spelling of 26540643262234 in words is "twenty-six trillion, five hundred forty billion, six hundred forty-three million, two hundred sixty-two thousand, two hundred thirty-four".