139647216709 has 48 divisors (see below), whose sum is σ = 198862195840. Its totient is φ = 95158800000.

The previous prime is 139647216689. The next prime is 139647216767. The reversal of 139647216709 is 907612746931.

It is not a de Polignac number, because 139647216709 - 2⁵ = 139647216677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139647216709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139647016709) 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 47 ways as a sum of consecutive naturals, for example, 124542 + ... + 542959.

Almost surely, 2^139647216709 is an apocalyptic number.

139647216709 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

139647216709 is a deficient number, since it is larger than the sum of its proper divisors (59214979131).

139647216709 is a wasteful number, since it uses less digits than its factorization.

139647216709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667562 (or 667551 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 139647216709 in words is "one hundred thirty-nine billion, six hundred forty-seven million, two hundred sixteen thousand, seven hundred nine".