26555849140 has 12 divisors (see below), whose sum is σ = 55767283236. Its totient is φ = 10622339648.

The previous prime is 26555849123. The next prime is 26555849147. The reversal of 26555849140 is 4194855562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15817086756 + 10738762384 = 125766^2 + 103628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26555849147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663896209 + ... + 663896248.

It is an arithmetic number, because the mean of its divisors is an integer number (4647273603).

Almost surely, 2^26555849140 is an apocalyptic number.

26555849140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26555849140 is an abundant number, since it is smaller than the sum of its proper divisors (29211434096).

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

26555849140 is a wasteful number, since it uses less digits than its factorization.

26555849140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327792466 (or 1327792464 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 26555849140 in words is "twenty-six billion, five hundred fifty-five million, eight hundred forty-nine thousand, one hundred forty".