27252778404 has 96 divisors (see below), whose sum is σ = 69583159296. Its totient is φ = 8264471040.

The previous prime is 27252778369. The next prime is 27252778411. The reversal of 27252778404 is 40487725272.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6973419 + ... + 6977325.

It is an arithmetic number, because the mean of its divisors is an integer number (724824576).

Almost surely, 2^27252778404 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 27252778404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34791579648).

27252778404 is an abundant number, since it is smaller than the sum of its proper divisors (42330380892).

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

27252778404 is a wasteful number, since it uses less digits than its factorization.

27252778404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065 (or 5063 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 48.

The spelling of 27252778404 in words is "twenty-seven billion, two hundred fifty-two million, seven hundred seventy-eight thousand, four hundred four".