239921139188 has 24 divisors (see below), whose sum is σ = 420791192640. Its totient is φ = 119695193280.

The previous prime is 239921139173. The next prime is 239921139209. The reversal of 239921139188 is 881931129932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11339123 + ... + 11360261.

It is an arithmetic number, because the mean of its divisors is an integer number (17532966360).

Almost surely, 2^239921139188 is an apocalyptic number.

It is an amenable number.

239921139188 is a deficient number, since it is larger than the sum of its proper divisors (180870053452).

239921139188 is a wasteful number, since it uses less digits than its factorization.

239921139188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27287 (or 27285 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 56.

The spelling of 239921139188 in words is "two hundred thirty-nine billion, nine hundred twenty-one million, one hundred thirty-nine thousand, one hundred eighty-eight".