26342989533 has 80 divisors (see below), whose sum is σ = 47928545280. Its totient is φ = 14091970464.

The previous prime is 26342989511. The next prime is 26342989537. The reversal of 26342989533 is 33598924362.

It is a happy number.

26342989533 is a `hidden beast` number, since 2 + 6 + 3 + 4 + 29 + 89 + 533 = 666.

It is not a de Polignac number, because 26342989533 - 2⁶ = 26342989469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26342989533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26342989537) 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 79 ways as a sum of consecutive naturals, for example, 591438 + ... + 634416.

It is an arithmetic number, because the mean of its divisors is an integer number (599106816).

Almost surely, 2^26342989533 is an apocalyptic number.

26342989533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

26342989533 is a deficient number, since it is larger than the sum of its proper divisors (21585555747).

26342989533 is a wasteful number, since it uses less digits than its factorization.

26342989533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43068 (or 43059 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 26342989533 in words is "twenty-six billion, three hundred forty-two million, nine hundred eighty-nine thousand, five hundred thirty-three".