26500064144368 has 40 divisors (see below), whose sum is σ = 51922003676400. Its totient is φ = 13100844455424.

The previous prime is 26500064144357. The next prime is 26500064144369. The reversal of 26500064144368 is 86344146000562.

It is a super-2 number, since 2×26500064144368² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26500064144369) 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, 66999955 + ... + 67394317.

It is an arithmetic number, because the mean of its divisors is an integer number (1298050091910).

Almost surely, 2^{26500064144368} is an apocalyptic number.

It is an amenable number.

26500064144368 is a deficient number, since it is larger than the sum of its proper divisors (25421939532032).

26500064144368 is a wasteful number, since it uses less digits than its factorization.

26500064144368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441649 (or 441643 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 49.

The spelling of 26500064144368 in words is "twenty-six trillion, five hundred billion, sixty-four million, one hundred forty-four thousand, three hundred sixty-eight".