26321538552 has 32 divisors (see below), whose sum is σ = 66882601680. Its totient is φ = 8630012160.

The previous prime is 26321538541. The next prime is 26321538553. The reversal of 26321538552 is 25583512362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26321538553) 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, 8988133 + ... + 8991060.

Almost surely, 2^26321538552 is an apocalyptic number.

It is an amenable number.

26321538552 is an abundant number, since it is smaller than the sum of its proper divisors (40561063128).

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

26321538552 is a wasteful number, since it uses less digits than its factorization.

26321538552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17979263 (or 17979259 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 26321538552 in words is "twenty-six billion, three hundred twenty-one million, five hundred thirty-eight thousand, five hundred fifty-two".