26089819648 has 20 divisors (see below), whose sum is σ = 52128683640. Its totient is φ = 13044909568.

The previous prime is 26089819643. The next prime is 26089819669. The reversal of 26089819648 is 84691898062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26089819643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25477828 + ... + 25478851.

It is an arithmetic number, because the mean of its divisors is an integer number (2606434182).

Almost surely, 2^26089819648 is an apocalyptic number.

It is an amenable number.

26089819648 is a deficient number, since it is larger than the sum of its proper divisors (26038863992).

26089819648 is an frugal number, since it uses more digits than its factorization.

26089819648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50956697 (or 50956681 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 61.

The spelling of 26089819648 in words is "twenty-six billion, eighty-nine million, eight hundred nineteen thousand, six hundred forty-eight".