43117493643 has 64 divisors (see below), whose sum is σ = 74342016000. Its totient is φ = 24187859712.

The previous prime is 43117493603. The next prime is 43117493677. The reversal of 43117493643 is 34639471134.

43117493643 is a `hidden beast` number, since 4 + 3 + 117 + 493 + 6 + 43 = 666.

It is not a de Polignac number, because 43117493643 - 2⁶ = 43117493579 is a prime.

It is a super-2 number, since 2×43117493643² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43117493603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9777223 + ... + 9781631.

It is an arithmetic number, because the mean of its divisors is an integer number (1161594000).

Almost surely, 2^43117493643 is an apocalyptic number.

43117493643 is a deficient number, since it is larger than the sum of its proper divisors (31224522357).

43117493643 is a wasteful number, since it uses less digits than its factorization.

43117493643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361 (or 5355 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 43117493643 in words is "forty-three billion, one hundred seventeen million, four hundred ninety-three thousand, six hundred forty-three".