13898927921694 has 16 divisors (see below), whose sum is σ = 27797896567440. Its totient is φ = 4632969186560.

The previous prime is 13898927921689. The next prime is 13898927921831. The reversal of 13898927921694 is 49612972989831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4456462 + ... + 6903470.

It is an arithmetic number, because the mean of its divisors is an integer number (1737368535465).

Almost surely, 2^{13898927921694} is an apocalyptic number.

13898927921694 is an abundant number, since it is smaller than the sum of its proper divisors (13898968645746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13898927921694 is a wasteful number, since it uses less digits than its factorization.

13898927921694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393675.

The product of its digits is 846526464, while the sum is 78.

The spelling of 13898927921694 in words is "thirteen trillion, eight hundred ninety-eight billion, nine hundred twenty-seven million, nine hundred twenty-one thousand, six hundred ninety-four".