26523235540 has 48 divisors (see below), whose sum is σ = 56666623104. Its totient is φ = 10425283200.

The previous prime is 26523235517. The next prime is 26523235577. The reversal of 26523235540 is 4553232562.

It is a self number, because there is not a number n which added to its sum of digits gives 26523235540.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1321057 + ... + 1340983.

It is an arithmetic number, because the mean of its divisors is an integer number (1180554648).

Almost surely, 2^26523235540 is an apocalyptic number.

26523235540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26523235540 is an abundant number, since it is smaller than the sum of its proper divisors (30143387564).

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

26523235540 is a wasteful number, since it uses less digits than its factorization.

26523235540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21088 (or 21086 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 26523235540 in words is "twenty-six billion, five hundred twenty-three million, two hundred thirty-five thousand, five hundred forty".