26168678780 has 24 divisors (see below), whose sum is σ = 54970717200. Its totient is φ = 10464330240.

The previous prime is 26168678779. The next prime is 26168678807. The reversal of 26168678780 is 8787686162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127430 + ... + 261869.

It is an arithmetic number, because the mean of its divisors is an integer number (2290446550).

Almost surely, 2^26168678780 is an apocalyptic number.

26168678780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26168678780 is an abundant number, since it is smaller than the sum of its proper divisors (28802038420).

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

26168678780 is a wasteful number, since it uses less digits than its factorization.

26168678780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392669 (or 392667 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 59.

The spelling of 26168678780 in words is "twenty-six billion, one hundred sixty-eight million, six hundred seventy-eight thousand, seven hundred eighty".