26311123664 has 40 divisors (see below), whose sum is σ = 58804861248. Its totient is φ = 11170805760.

The previous prime is 26311123649. The next prime is 26311123777. The reversal of 26311123664 is 46632111362.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1085777 + ... + 1109744.

Almost surely, 2^26311123664 is an apocalyptic number.

It is an amenable number.

26311123664 is an abundant number, since it is smaller than the sum of its proper divisors (32493737584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26311123664 is a wasteful number, since it uses less digits than its factorization.

26311123664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195643 (or 2195637 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The spelling of 26311123664 in words is "twenty-six billion, three hundred eleven million, one hundred twenty-three thousand, six hundred sixty-four".