139043209720 has 64 divisors (see below), whose sum is σ = 315441008640. Its totient is φ = 55157942400.

The previous prime is 139043209651. The next prime is 139043209727. The reversal of 139043209720 is 27902340931.

139043209720 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139043209727) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2501349 + ... + 2556331.

It is an arithmetic number, because the mean of its divisors is an integer number (4928765760).

Almost surely, 2^139043209720 is an apocalyptic number.

139043209720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139043209720 is an abundant number, since it is smaller than the sum of its proper divisors (176397798920).

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

139043209720 is a wasteful number, since it uses less digits than its factorization.

139043209720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55516 (or 55512 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 139043209720 in words is "one hundred thirty-nine billion, forty-three million, two hundred nine thousand, seven hundred twenty".