13941959860865 has 8 divisors (see below), whose sum is σ = 16735174670760. Its totient is φ = 11150352663552.

The previous prime is 13941959860847. The next prime is 13941959860889. The reversal of 13941959860865 is 56806895914931.

It can be written as a sum of positive squares in 4 ways, for example, as 150845238544 + 13791114622321 = 388388^2 + 3713639^2 .

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-13941959860865 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13941959860792 and 13941959860801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401884064 + ... + 401918753.

It is an arithmetic number, because the mean of its divisors is an integer number (2091896833845).

Almost surely, 2^{13941959860865} is an apocalyptic number.

It is an amenable number.

13941959860865 is a deficient number, since it is larger than the sum of its proper divisors (2793214809895).

13941959860865 is an equidigital number, since it uses as much as digits as its factorization.

13941959860865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803806291.

The product of its (nonzero) digits is 503884800, while the sum is 74.

The spelling of 13941959860865 in words is "thirteen trillion, nine hundred forty-one billion, nine hundred fifty-nine million, eight hundred sixty thousand, eight hundred sixty-five".