26345223968 has 54 divisors (see below), whose sum is σ = 60349990491. Its totient is φ = 11288055744.

The previous prime is 26345223953. The next prime is 26345223977. The reversal of 26345223968 is 86932254362.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 13172611984 + 13172611984 = 114772^2 + 114772^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6425183 + ... + 6429281.

Almost surely, 2^26345223968 is an apocalyptic number.

26345223968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26345223968 is an abundant number, since it is smaller than the sum of its proper divisors (34004766523).

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

26345223968 is an frugal number, since it uses more digits than its factorization.

26345223968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222 (or 4108 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 50.

Multiplying 26345223968 by its sum of digits (50), we get a square (1317261198400 = 1147720²).

The spelling of 26345223968 in words is "twenty-six billion, three hundred forty-five million, two hundred twenty-three thousand, nine hundred sixty-eight".