27883309938 has 24 divisors (see below), whose sum is σ = 61297195344. Its totient is φ = 8449487640.

The previous prime is 27883309873. The next prime is 27883309969. The reversal of 27883309938 is 83990338872.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19202656 + ... + 19204107.

It is an arithmetic number, because the mean of its divisors is an integer number (2554049806).

Almost surely, 2^27883309938 is an apocalyptic number.

27883309938 is an abundant number, since it is smaller than the sum of its proper divisors (33413885406).

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

27883309938 is a wasteful number, since it uses less digits than its factorization.

27883309938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38406790 (or 38406779 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 27883309938 in words is "twenty-seven billion, eight hundred eighty-three million, three hundred nine thousand, nine hundred thirty-eight".