139934443068 has 72 divisors (see below), whose sum is σ = 407163469440. Its totient is φ = 39693624480.

The previous prime is 139934443063. The next prime is 139934443069. The reversal of 139934443068 is 860344439931.

It is a happy number.

139934443068 is a `hidden beast` number, since 139 + 9 + 3 + 4 + 443 + 0 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139934443063) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1962438 + ... + 2032493.

Almost surely, 2^139934443068 is an apocalyptic number.

139934443068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139934443068 is an abundant number, since it is smaller than the sum of its proper divisors (267229026372).

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

139934443068 is a wasteful number, since it uses less digits than its factorization.

139934443068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995087 (or 3995082 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 139934443068 in words is "one hundred thirty-nine billion, nine hundred thirty-four million, four hundred forty-three thousand, sixty-eight".