4378406543 has 4 divisors (see below), whose sum is σ = 5003893200. Its totient is φ = 3752919888.

The previous prime is 4378406537. The next prime is 4378406563. The reversal of 4378406543 is 3456048734.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4378406543 - 2¹⁰ = 4378405519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4378406494 and 4378406503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378406533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312743318 + ... + 312743331.

It is an arithmetic number, because the mean of its divisors is an integer number (1250973300).

Almost surely, 2^4378406543 is an apocalyptic number.

4378406543 is a deficient number, since it is larger than the sum of its proper divisors (625486657).

4378406543 is an equidigital number, since it uses as much as digits as its factorization.

4378406543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625486656.

The product of its (nonzero) digits is 967680, while the sum is 44.

The square root of 4378406543 is about 66169.5288104729. The cubic root of 4378406543 is about 1635.9575412719.

The spelling of 4378406543 in words is "four billion, three hundred seventy-eight million, four hundred six thousand, five hundred forty-three".