27512378256 has 80 divisors (see below), whose sum is σ = 79426041408. Its totient is φ = 8133734400.

The previous prime is 27512378251. The next prime is 27512378273. The reversal of 27512378256 is 65287321572.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (27512378251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613801 + ... + 657096.

Almost surely, 2^27512378256 is an apocalyptic number.

It is an amenable number.

27512378256 is an abundant number, since it is smaller than the sum of its proper divisors (51913663152).

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

27512378256 is a wasteful number, since it uses less digits than its factorization.

27512378256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270960 (or 1270954 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The spelling of 27512378256 in words is "twenty-seven billion, five hundred twelve million, three hundred seventy-eight thousand, two hundred fifty-six".