26906684784 has 60 divisors (see below), whose sum is σ = 80857340424. Its totient is φ = 7687623552.

The previous prime is 26906684731. The next prime is 26906684801. The reversal of 26906684784 is 48748660962.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 5717607 + ... + 5722310.

Almost surely, 2^26906684784 is an apocalyptic number.

26906684784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26906684784 is an abundant number, since it is smaller than the sum of its proper divisors (53950655640).

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

26906684784 is a wasteful number, since it uses less digits than its factorization.

26906684784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11439942 (or 11439929 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 26906684784 in words is "twenty-six billion, nine hundred six million, six hundred eighty-four thousand, seven hundred eighty-four".