26328387523 has 16 divisors (see below), whose sum is σ = 27597413376. Its totient is φ = 25069968000.

The previous prime is 26328387487. The next prime is 26328387529. The reversal of 26328387523 is 32578382362.

It is a cyclic number.

It is not a de Polignac number, because 26328387523 - 2⁹ = 26328387011 is a prime.

It is a super-2 number, since 2×26328387523² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26328387529) 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 15 ways as a sum of consecutive naturals, for example, 5818740 + ... + 5823262.

It is an arithmetic number, because the mean of its divisors is an integer number (1724838336).

Almost surely, 2^26328387523 is an apocalyptic number.

26328387523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

26328387523 is a deficient number, since it is larger than the sum of its proper divisors (1269025853).

26328387523 is a wasteful number, since it uses less digits than its factorization.

26328387523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634.

The product of its digits is 2903040, while the sum is 49.

The spelling of 26328387523 in words is "twenty-six billion, three hundred twenty-eight million, three hundred eighty-seven thousand, five hundred twenty-three".