4543638651468 has 72 divisors (see below), whose sum is σ = 13154789796512. Its totient is φ = 1295341777152.

The previous prime is 4543638651389. The next prime is 4543638651509. The reversal of 4543638651468 is 8641568363454.

4543638651468 is a `hidden beast` number, since 4 + 5 + 4 + 36 + 3 + 86 + 514 + 6 + 8 = 666.

It is a super-2 number, since 2×4543638651468² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19611655 + ... + 19841982.

Almost surely, 2^{4543638651468} is an apocalyptic number.

It is an amenable number.

4543638651468 is an abundant number, since it is smaller than the sum of its proper divisors (8611151145044).

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

4543638651468 is a wasteful number, since it uses less digits than its factorization.

4543638651468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39454111 (or 39454106 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 63.

The spelling of 4543638651468 in words is "four trillion, five hundred forty-three billion, six hundred thirty-eight million, six hundred fifty-one thousand, four hundred sixty-eight".