21694696036417 has 8 divisors (see below), whose sum is σ = 22460336179200. Its totient is φ = 20930225705424.

The previous prime is 21694696036367. The next prime is 21694696036441. The reversal of 21694696036417 is 71463069649612.

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

It is a cyclic number.

It is not a de Polignac number, because 21694696036417 - 2¹⁵ = 21694696003649 is a prime.

It is a super-3 number, since 3×21694696036417³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21694696036217) 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, 292415203 + ... + 292489384.

It is an arithmetic number, because the mean of its divisors is an integer number (2807542022400).

Almost surely, 2^{21694696036417} is an apocalyptic number.

It is an amenable number.

21694696036417 is a deficient number, since it is larger than the sum of its proper divisors (765640142783).

21694696036417 is a wasteful number, since it uses less digits than its factorization.

21694696036417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584905895.

The product of its (nonzero) digits is 70543872, while the sum is 64.

The spelling of 21694696036417 in words is "twenty-one trillion, six hundred ninety-four billion, six hundred ninety-six million, thirty-six thousand, four hundred seventeen".