26952019968 has 78 divisors (see below), whose sum is σ = 71911836052. Its totient is φ = 8977940480.

The previous prime is 26952019957. The next prime is 26952019993. The reversal of 26952019968 is 86991025962.

It is a super-2 number, since 2×26952019968² (a number of 22 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 18197788 + ... + 18199268.

Almost surely, 2^26952019968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26952019968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35955918026).

26952019968 is an abundant number, since it is smaller than the sum of its proper divisors (44959816084).

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

26952019968 is an frugal number, since it uses more digits than its factorization.

26952019968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 26952019968 in words is "twenty-six billion, nine hundred fifty-two million, nineteen thousand, nine hundred sixty-eight".