26019817823 has 16 divisors (see below), whose sum is σ = 28562448096. Its totient is φ = 23604034560.

The previous prime is 26019817801. The next prime is 26019817861. The reversal of 26019817823 is 32871891062.

It is a happy number.

It is not a de Polignac number, because 26019817823 - 2⁸ = 26019817567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26019810823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167036 + ... + 282737.

It is an arithmetic number, because the mean of its divisors is an integer number (1785153006).

Almost surely, 2^26019817823 is an apocalyptic number.

26019817823 is a deficient number, since it is larger than the sum of its proper divisors (2542630273).

26019817823 is a wasteful number, since it uses less digits than its factorization.

26019817823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449914.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 26019817823 in words is "twenty-six billion, nineteen million, eight hundred seventeen thousand, eight hundred twenty-three".