26131066257 has 8 divisors (see below), whose sum is σ = 34854545376. Its totient is φ = 17414148992.

The previous prime is 26131066253. The next prime is 26131066259. The reversal of 26131066257 is 75266013162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26131066257 - 2² = 26131066253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26131066253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631163 + ... + 1647104.

It is an arithmetic number, because the mean of its divisors is an integer number (4356818172).

Almost surely, 2^26131066257 is an apocalyptic number.

It is an amenable number.

26131066257 is a deficient number, since it is larger than the sum of its proper divisors (8723479119).

26131066257 is a wasteful number, since it uses less digits than its factorization.

26131066257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280927.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 26131066257 in words is "twenty-six billion, one hundred thirty-one million, sixty-six thousand, two hundred fifty-seven".