26207666631 has 12 divisors (see below), whose sum is σ = 39076664640. Its totient is φ = 16908171840.

The previous prime is 26207666629. The next prime is 26207666657. The reversal of 26207666631 is 13666670262.

It is not a de Polignac number, because 26207666631 - 2¹ = 26207666629 is a prime.

It is a super-2 number, since 2×26207666631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26207666671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46966866 + ... + 46967423.

It is an arithmetic number, because the mean of its divisors is an integer number (3256388720).

Almost surely, 2^26207666631 is an apocalyptic number.

26207666631 is a deficient number, since it is larger than the sum of its proper divisors (12868998009).

26207666631 is a wasteful number, since it uses less digits than its factorization.

26207666631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93934326 (or 93934323 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 26207666631 in words is "twenty-six billion, two hundred seven million, six hundred sixty-six thousand, six hundred thirty-one".