26433982297 has 4 divisors (see below), whose sum is σ = 26695704996. Its totient is φ = 26172259600.

The previous prime is 26433982243. The next prime is 26433982343. The reversal of 26433982297 is 79228933462.

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 17813973961 + 8620008336 = 133469^2 + 92844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26433982297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26433982207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130861198 + ... + 130861399.

It is an arithmetic number, because the mean of its divisors is an integer number (6673926249).

Almost surely, 2^26433982297 is an apocalyptic number.

It is an amenable number.

26433982297 is a deficient number, since it is larger than the sum of its proper divisors (261722699).

26433982297 is a wasteful number, since it uses less digits than its factorization.

26433982297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261722698.

The product of its digits is 7838208, while the sum is 55.

The spelling of 26433982297 in words is "twenty-six billion, four hundred thirty-three million, nine hundred eighty-two thousand, two hundred ninety-seven".