14394946464 has 36 divisors (see below), whose sum is σ = 40935629826. Its totient is φ = 4798315392.

The previous prime is 14394946403. The next prime is 14394946481. The reversal of 14394946464 is 46464949341.

14394946464 is a `hidden beast` number, since 1 + 4 + 3 + 94 + 94 + 6 + 464 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14282162064 + 112784400 = 119508^2 + 10620^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×14394946464² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 14394946464.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24990939 + ... + 24991514.

Almost surely, 2^14394946464 is an apocalyptic number.

It is an amenable number.

14394946464 is an abundant number, since it is smaller than the sum of its proper divisors (26540683362).

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

14394946464 is a wasteful number, since it uses less digits than its factorization.

14394946464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49982469 (or 49982458 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 54.

The spelling of 14394946464 in words is "fourteen billion, three hundred ninety-four million, nine hundred forty-six thousand, four hundred sixty-four".