26543643704 has 16 divisors (see below), whose sum is σ = 50983218720. Its totient is φ = 12948118720.

The previous prime is 26543643697. The next prime is 26543643713. The reversal of 26543643704 is 40734634562.

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 3 ways as a sum of consecutive naturals, for example, 40462544 + ... + 40463199.

It is an arithmetic number, because the mean of its divisors is an integer number (3186451170).

Almost surely, 2^26543643704 is an apocalyptic number.

It is an amenable number.

26543643704 is a deficient number, since it is larger than the sum of its proper divisors (24439575016).

26543643704 is a wasteful number, since it uses less digits than its factorization.

26543643704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80925790 (or 80925786 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 44.

The spelling of 26543643704 in words is "twenty-six billion, five hundred forty-three million, six hundred forty-three thousand, seven hundred four".