139538934888 has 32 divisors (see below), whose sum is σ = 349096776000. Its totient is φ = 46479719808.

The previous prime is 139538934877. The next prime is 139538934901. The reversal of 139538934888 is 888439835931.

It is a happy number.

It is a super-2 number, since 2×139538934888² (a number of 23 digits) contains 22 as substring.

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, 2044381 + ... + 2111532.

It is an arithmetic number, because the mean of its divisors is an integer number (10909274250).

Almost surely, 2^139538934888 is an apocalyptic number.

It is an amenable number.

139538934888 is an abundant number, since it is smaller than the sum of its proper divisors (209557841112).

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

139538934888 is a wasteful number, since it uses less digits than its factorization.

139538934888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157321 (or 4157317 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 69.

The spelling of 139538934888 in words is "one hundred thirty-nine billion, five hundred thirty-eight million, nine hundred thirty-four thousand, eight hundred eighty-eight".