13964588646 has 8 divisors (see below), whose sum is σ = 27929177304. Its totient is φ = 4654862880.

The previous prime is 13964588641. The next prime is 13964588717. The reversal of 13964588646 is 64688546931.

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

13964588646 is an admirable number.

It is a super-2 number, since 2×13964588646² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13964588646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13964588641) 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, 1163715715 + ... + 1163715726.

It is an arithmetic number, because the mean of its divisors is an integer number (3491147163).

Almost surely, 2^13964588646 is an apocalyptic number.

13964588646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13964588646 is a wasteful number, since it uses less digits than its factorization.

13964588646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327431446.

The product of its digits is 29859840, while the sum is 60.

The spelling of 13964588646 in words is "thirteen billion, nine hundred sixty-four million, five hundred eighty-eight thousand, six hundred forty-six".