13969864816370 has 8 divisors (see below), whose sum is σ = 25145756669484. Its totient is φ = 5587945926544.

The previous prime is 13969864816357. The next prime is 13969864816403. The reversal of 13969864816370 is 7361846896931.

It can be written as a sum of positive squares in 2 ways, for example, as 13794234255481 + 175630560889 = 3714059^2 + 419083^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13969864816294 and 13969864816303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698493240809 + ... + 698493240828.

Almost surely, 2^{13969864816370} is an apocalyptic number.

13969864816370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13969864816370 is a deficient number, since it is larger than the sum of its proper divisors (11175891853114).

13969864816370 is a wasteful number, since it uses less digits than its factorization.

13969864816370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396986481644.

The product of its (nonzero) digits is 282175488, while the sum is 71.

The spelling of 13969864816370 in words is "thirteen trillion, nine hundred sixty-nine billion, eight hundred sixty-four million, eight hundred sixteen thousand, three hundred seventy".