139543409684 has 24 divisors (see below), whose sum is σ = 280080026688. Its totient is φ = 59591488320.

The previous prime is 139543409651. The next prime is 139543409737. The reversal of 139543409684 is 486904345931.

139543409684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8859914 + ... + 8875649.

It is an arithmetic number, because the mean of its divisors is an integer number (11670001112).

Almost surely, 2^139543409684 is an apocalyptic number.

139543409684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139543409684 is an abundant number, since it is smaller than the sum of its proper divisors (140536617004).

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

139543409684 is a wasteful number, since it uses less digits than its factorization.

139543409684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17735855 (or 17735853 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 139543409684 in words is "one hundred thirty-nine billion, five hundred forty-three million, four hundred nine thousand, six hundred eighty-four".