26527762649 has 4 divisors (see below), whose sum is σ = 27383496960. Its totient is φ = 25672028340.

The previous prime is 26527762643. The next prime is 26527762721. The reversal of 26527762649 is 94626772562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26527762649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26527762594 and 26527762603.

It is not an unprimeable number, because it can be changed into a prime (26527762643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427867109 + ... + 427867170.

It is an arithmetic number, because the mean of its divisors is an integer number (6845874240).

Almost surely, 2^26527762649 is an apocalyptic number.

It is an amenable number.

26527762649 is a deficient number, since it is larger than the sum of its proper divisors (855734311).

26527762649 is an equidigital number, since it uses as much as digits as its factorization.

26527762649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855734310.

The product of its digits is 15240960, while the sum is 56.

The spelling of 26527762649 in words is "twenty-six billion, five hundred twenty-seven million, seven hundred sixty-two thousand, six hundred forty-nine".