26530930560 has 128 divisors (see below), whose sum is σ = 88244328960. Its totient is φ = 6767298560.

The previous prime is 26530930553. The next prime is 26530930561. The reversal of 26530930560 is 6503903562.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26530930561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256236 + ... + 344555.

It is an arithmetic number, because the mean of its divisors is an integer number (689408820).

Almost surely, 2^26530930560 is an apocalyptic number.

26530930560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26530930560 is an abundant number, since it is smaller than the sum of its proper divisors (61713398400).

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

26530930560 is a wasteful number, since it uses less digits than its factorization.

26530930560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600836 (or 600824 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 39.

The spelling of 26530930560 in words is "twenty-six billion, five hundred thirty million, nine hundred thirty thousand, five hundred sixty".