27878552504 has 64 divisors (see below), whose sum is σ = 58642466400. Its totient is φ = 12313382400.

The previous prime is 27878552491. The next prime is 27878552519. The reversal of 27878552504 is 40525587872.

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, 2667962 + ... + 2678390.

Almost surely, 2^27878552504 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 27878552504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29321233200).

27878552504 is an abundant number, since it is smaller than the sum of its proper divisors (30763913896).

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

27878552504 is a wasteful number, since it uses less digits than its factorization.

27878552504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304 (or 11300 counting only the distinct ones).

The product of its (nonzero) digits is 6272000, while the sum is 53.

The spelling of 27878552504 in words is "twenty-seven billion, eight hundred seventy-eight million, five hundred fifty-two thousand, five hundred four".