26436669147 has 12 divisors (see below), whose sum is σ = 43641485680. Its totient is φ = 15106668048.

The previous prime is 26436669143. The next prime is 26436669191. The reversal of 26436669147 is 74196663462.

It is a happy number.

It is not a de Polignac number, because 26436669147 - 2² = 26436669143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26436669093 and 26436669102.

It is not an unprimeable number, because it can be changed into a prime (26436669143) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 209814772 + ... + 209814897.

Almost surely, 2^26436669147 is an apocalyptic number.

26436669147 is a deficient number, since it is larger than the sum of its proper divisors (17204816533).

26436669147 is a wasteful number, since it uses less digits than its factorization.

26436669147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419629682 (or 419629679 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 26436669147 in words is "twenty-six billion, four hundred thirty-six million, six hundred sixty-nine thousand, one hundred forty-seven".