26679680 has 32 divisors (see below), whose sum is σ = 63782640. Its totient is φ = 10671616.

The previous prime is 26679661. The next prime is 26679703. The reversal of 26679680 is 8697662.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20204 + ... + 21483.

Almost surely, 2^26679680 is an apocalyptic number.

26679680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26679680 is an abundant number, since it is smaller than the sum of its proper divisors (37102960).

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

26679680 is an equidigital number, since it uses as much as digits as its factorization.

26679680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41706 (or 41694 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 26679680 is about 5165.2376518414. The cubic root of 26679680 is about 298.8089068788.

The spelling of 26679680 in words is "twenty-six million, six hundred seventy-nine thousand, six hundred eighty".