27942509392 has 80 divisors (see below), whose sum is σ = 62216017920. Its totient is φ = 11909130624.

The previous prime is 27942509383. The next prime is 27942509407. The reversal of 27942509392 is 29390524972.

It is a super-2 number, since 2×27942509392² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19580583 + ... + 19582009.

It is an arithmetic number, because the mean of its divisors is an integer number (777700224).

Almost surely, 2^27942509392 is an apocalyptic number.

It is an amenable number.

27942509392 is an abundant number, since it is smaller than the sum of its proper divisors (34273508528).

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

27942509392 is a wasteful number, since it uses less digits than its factorization.

27942509392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2282 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 27942509392 in words is "twenty-seven billion, nine hundred forty-two million, five hundred nine thousand, three hundred ninety-two".