43472194543 has 2 divisors, whose sum is σ = 43472194544. Its totient is φ = 43472194542.

The previous prime is 43472194529. The next prime is 43472194607. The reversal of 43472194543 is 34549127434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43472194543 - 2²⁵ = 43438640111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43472194493 and 43472194502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43472198543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21736097271 + 21736097272.

It is an arithmetic number, because the mean of its divisors is an integer number (21736097272).

Almost surely, 2^43472194543 is an apocalyptic number.

43472194543 is a deficient number, since it is larger than the sum of its proper divisors (1).

43472194543 is an equidigital number, since it uses as much as digits as its factorization.

43472194543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 46.

The spelling of 43472194543 in words is "forty-three billion, four hundred seventy-two million, one hundred ninety-four thousand, five hundred forty-three".