26642607263 has 4 divisors (see below), whose sum is σ = 26727727728. Its totient is φ = 26557486800.

The previous prime is 26642607209. The next prime is 26642607287. The reversal of 26642607263 is 36270624662.

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 26642607263 - 2¹⁴ = 26642590879 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 (26642607293) 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, 42559763 + ... + 42560388.

It is an arithmetic number, because the mean of its divisors is an integer number (6681931932).

Almost surely, 2^26642607263 is an apocalyptic number.

26642607263 is a deficient number, since it is larger than the sum of its proper divisors (85120465).

26642607263 is an equidigital number, since it uses as much as digits as its factorization.

26642607263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85120464.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 26642607263 in words is "twenty-six billion, six hundred forty-two million, six hundred seven thousand, two hundred sixty-three".