26388116607 has 4 divisors (see below), whose sum is σ = 35184155480. Its totient is φ = 17592077736.

The previous prime is 26388116603. The next prime is 26388116611. The reversal of 26388116607 is 70661188362.

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

It is an interprime number because it is at equal distance from previous prime (26388116603) and next prime (26388116611).

It is not a de Polignac number, because 26388116607 - 2² = 26388116603 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 (26388116603) 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, 4398019432 + ... + 4398019437.

It is an arithmetic number, because the mean of its divisors is an integer number (8796038870).

Almost surely, 2^26388116607 is an apocalyptic number.

26388116607 is a deficient number, since it is larger than the sum of its proper divisors (8796038873).

26388116607 is an equidigital number, since it uses as much as digits as its factorization.

26388116607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8796038872.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 26388116607 in words is "twenty-six billion, three hundred eighty-eight million, one hundred sixteen thousand, six hundred seven".