139838579932 has 24 divisors (see below), whose sum is σ = 245074636800. Its totient is φ = 69817334256.

The previous prime is 139838579917. The next prime is 139838579963. The reversal of 139838579932 is 239975838931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8274363 + ... + 8291245.

It is an arithmetic number, because the mean of its divisors is an integer number (10211443200).

Almost surely, 2^139838579932 is an apocalyptic number.

It is an amenable number.

139838579932 is a deficient number, since it is larger than the sum of its proper divisors (105236056868).

139838579932 is a wasteful number, since it uses less digits than its factorization.

139838579932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19785 (or 19783 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 67.

The spelling of 139838579932 in words is "one hundred thirty-nine billion, eight hundred thirty-eight million, five hundred seventy-nine thousand, nine hundred thirty-two".