43543014642 has 80 divisors (see below), whose sum is σ = 99498105432. Its totient is φ = 14227799040.

The previous prime is 43543014637. The next prime is 43543014661. The reversal of 43543014642 is 24641034534.

43543014642 is a `hidden beast` number, since 4 + 3 + 5 + 4 + 3 + 0 + 1 + 4 + 642 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 43338496041 + 204518601 = 208179^2 + 14301^2 .

It is a super-2 number, since 2×43543014642² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43543014597 and 43543014606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17866248 + ... + 17868684.

Almost surely, 2^43543014642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43543014642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49749052716).

43543014642 is an abundant number, since it is smaller than the sum of its proper divisors (55955090790).

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

43543014642 is a wasteful number, since it uses less digits than its factorization.

43543014642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585 (or 4576 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 43543014642 in words is "forty-three billion, five hundred forty-three million, fourteen thousand, six hundred forty-two".