39216720109349 has 8 divisors (see below), whose sum is σ = 40924592936640. Its totient is φ = 37509080452096.

The previous prime is 39216720109339. The next prime is 39216720109351. The reversal of 39216720109349 is 94390102761293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39216720109349 is a prime.

It is a super-2 number, since 2×39216720109349² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39216720109294 and 39216720109303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39216720109339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57948764 + ... + 58621605.

It is an arithmetic number, because the mean of its divisors is an integer number (5115574117080).

Almost surely, 2^{39216720109349} is an apocalyptic number.

It is an amenable number.

39216720109349 is a deficient number, since it is larger than the sum of its proper divisors (1707872827291).

39216720109349 is a wasteful number, since it uses less digits than its factorization.

39216720109349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116585019.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The spelling of 39216720109349 in words is "thirty-nine trillion, two hundred sixteen billion, seven hundred twenty million, one hundred nine thousand, three hundred forty-nine".