27984895038 has 16 divisors (see below), whose sum is σ = 62188655760. Its totient is φ = 9328298328.

The previous prime is 27984894979. The next prime is 27984895039. The reversal of 27984895038 is 83059848972.

27984895038 is a `hidden beast` number, since 2 + 79 + 8 + 489 + 50 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27984895039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259119345 + ... + 259119452.

It is an arithmetic number, because the mean of its divisors is an integer number (3886790985).

Almost surely, 2^27984895038 is an apocalyptic number.

27984895038 is an abundant number, since it is smaller than the sum of its proper divisors (34203760722).

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

27984895038 is a wasteful number, since it uses less digits than its factorization.

27984895038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518238808 (or 518238802 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 27984895038 in words is "twenty-seven billion, nine hundred eighty-four million, eight hundred ninety-five thousand, thirty-eight".