26980018256 has 20 divisors (see below), whose sum is σ = 54546559392. Its totient is φ = 12903486816.

The previous prime is 26980018217. The next prime is 26980018277. The reversal of 26980018256 is 65281008962.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26980018256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36657266 + ... + 36658001.

Almost surely, 2^26980018256 is an apocalyptic number.

It is an amenable number.

26980018256 is an abundant number, since it is smaller than the sum of its proper divisors (27566541136).

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

26980018256 is a wasteful number, since it uses less digits than its factorization.

26980018256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73315298 (or 73315292 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 26980018256 in words is "twenty-six billion, nine hundred eighty million, eighteen thousand, two hundred fifty-six".