26676691878408 has 64 divisors (see below), whose sum is σ = 78351123009600. Its totient is φ = 7462011713280.

The previous prime is 26676691878383. The next prime is 26676691878413. The reversal of 26676691878408 is 80487819667662.

It is a happy number.

It is a super-2 number, since 2×26676691878408² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3886461003 + ... + 3886467866.

It is an arithmetic number, because the mean of its divisors is an integer number (1224236297025).

Almost surely, 2^{26676691878408} is an apocalyptic number.

It is an amenable number.

26676691878408 is an abundant number, since it is smaller than the sum of its proper divisors (51674431131192).

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

26676691878408 is a wasteful number, since it uses less digits than its factorization.

26676691878408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772928902 (or 7772928898 counting only the distinct ones).

The product of its (nonzero) digits is 2341011456, while the sum is 78.

The spelling of 26676691878408 in words is "twenty-six trillion, six hundred seventy-six billion, six hundred ninety-one million, eight hundred seventy-eight thousand, four hundred eight".