26951678208 has 864 divisors, whose sum is σ = 103809690880. Its totient is φ = 6799085568.

The previous prime is 26951678207. The next prime is 26951678249. The reversal of 26951678208 is 80287615962.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (26951678203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1171812085 + ... + 1171812107.

Almost surely, 2^26951678208 is an apocalyptic number.

26951678208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26951678208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51904845440).

26951678208 is an abundant number, since it is smaller than the sum of its proper divisors (76858012672).

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

26951678208 is an frugal number, since it uses more digits than its factorization.

26951678208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 26951678208 in words is "twenty-six billion, nine hundred fifty-one million, six hundred seventy-eight thousand, two hundred eight".