26653206464 has 56 divisors (see below), whose sum is σ = 53926758288. Its totient is φ = 13065728000.

The previous prime is 26653206439. The next prime is 26653206469. The reversal of 26653206464 is 46460235662.

It is a super-2 number, since 2×26653206464² (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 (26653206469) 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 7 ways as a sum of consecutive naturals, for example, 8196839 + ... + 8200089.

Almost surely, 2^26653206464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26653206464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26963379144).

26653206464 is an abundant number, since it is smaller than the sum of its proper divisors (27273551824).

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

26653206464 is a wasteful number, since it uses less digits than its factorization.

26653206464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733 (or 5723 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 26653206464 in words is "twenty-six billion, six hundred fifty-three million, two hundred six thousand, four hundred sixty-four".