26414243969 has 4 divisors (see below), whose sum is σ = 27968023044. Its totient is φ = 24860464896.

The previous prime is 26414243959. The next prime is 26414243981. The reversal of 26414243969 is 96934241462.

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 23585280625 + 2828963344 = 153575^2 + 53188^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26414243969 is a prime.

It is a super-2 number, since 2×26414243969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26414243929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776889512 + ... + 776889545.

It is an arithmetic number, because the mean of its divisors is an integer number (6992005761).

Almost surely, 2^26414243969 is an apocalyptic number.

It is an amenable number.

26414243969 is a deficient number, since it is larger than the sum of its proper divisors (1553779075).

26414243969 is a wasteful number, since it uses less digits than its factorization.

26414243969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553779074.

The product of its digits is 2239488, while the sum is 50.

The spelling of 26414243969 in words is "twenty-six billion, four hundred fourteen million, two hundred forty-three thousand, nine hundred sixty-nine".