26687010816 has 96 divisors (see below), whose sum is σ = 79053483600. Its totient is φ = 8895651840.

The previous prime is 26687010809. The next prime is 26687010817. The reversal of 26687010816 is 61801078662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26687010817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186015 + ... + 296606.

Almost surely, 2^26687010816 is an apocalyptic number.

It is an amenable number.

26687010816 is an abundant number, since it is smaller than the sum of its proper divisors (52366472784).

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

26687010816 is an equidigital number, since it uses as much as digits as its factorization.

26687010816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482652 (or 482626 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 26687010816 in words is "twenty-six billion, six hundred eighty-seven million, ten thousand, eight hundred sixteen".