26041971669 has 16 divisors (see below), whose sum is σ = 40185323520. Its totient is φ = 14692757040.

The previous prime is 26041971661. The next prime is 26041971671. The reversal of 26041971669 is 96617914062.

It is not a de Polignac number, because 26041971669 - 2³ = 26041971661 is a prime.

It is a super-2 number, since 2×26041971669² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26041971661) 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 15 ways as a sum of consecutive naturals, for example, 7847037 + ... + 7850354.

It is an arithmetic number, because the mean of its divisors is an integer number (2511582720).

Almost surely, 2^26041971669 is an apocalyptic number.

It is an amenable number.

26041971669 is a deficient number, since it is larger than the sum of its proper divisors (14143351851).

26041971669 is a wasteful number, since it uses less digits than its factorization.

26041971669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15697480.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 26041971669 in words is "twenty-six billion, forty-one million, nine hundred seventy-one thousand, six hundred sixty-nine".