15983980686313 has 4 divisors (see below), whose sum is σ = 16186309555840. Its totient is φ = 15781651816788.

The previous prime is 15983980686283. The next prime is 15983980686319. The reversal of 15983980686313 is 31368608938951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15983980686313 - 2⁹ = 15983980685801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15983980686319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101164434645 + ... + 101164434802.

It is an arithmetic number, because the mean of its divisors is an integer number (4046577388960).

Almost surely, 2^{15983980686313} is an apocalyptic number.

It is an amenable number.

15983980686313 is a deficient number, since it is larger than the sum of its proper divisors (202328869527).

15983980686313 is an equidigital number, since it uses as much as digits as its factorization.

15983980686313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202328869526.

The product of its (nonzero) digits is 201553920, while the sum is 70.

The spelling of 15983980686313 in words is "fifteen trillion, nine hundred eighty-three billion, nine hundred eighty million, six hundred eighty-six thousand, three hundred thirteen".