27261374208 has 144 divisors (see below), whose sum is σ = 75629438976. Its totient is φ = 8707829760.

The previous prime is 27261374167. The next prime is 27261374251. The reversal of 27261374208 is 80247316272.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27261374208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2446666 + ... + 2457782.

Almost surely, 2^27261374208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27261374208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37814719488).

27261374208 is an abundant number, since it is smaller than the sum of its proper divisors (48368064768).

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

27261374208 is a wasteful number, since it uses less digits than its factorization.

27261374208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270 (or 11256 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 27261374208 in words is "twenty-seven billion, two hundred sixty-one million, three hundred seventy-four thousand, two hundred eight".