26604413953 has 4 divisors (see below), whose sum is σ = 28650907348. Its totient is φ = 24557920560.

The previous prime is 26604413917. The next prime is 26604413977. The reversal of 26604413953 is 35931440662.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8874958849 + 17729455104 = 94207^2 + 133152^2 .

It is a cyclic number.

It is not a de Polignac number, because 26604413953 - 2²⁹ = 26067543041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26604414953) 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, 1023246678 + ... + 1023246703.

It is an arithmetic number, because the mean of its divisors is an integer number (7162726837).

Almost surely, 2^26604413953 is an apocalyptic number.

It is an amenable number.

26604413953 is a deficient number, since it is larger than the sum of its proper divisors (2046493395).

26604413953 is a wasteful number, since it uses less digits than its factorization.

26604413953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046493394.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 26604413953 in words is "twenty-six billion, six hundred four million, four hundred thirteen thousand, nine hundred fifty-three".