5643427450 has 12 divisors (see below), whose sum is σ = 10496775150. Its totient is φ = 2257370960.

The previous prime is 5643427429. The next prime is 5643427451. The reversal of 5643427450 is 547243465.

It can be written as a sum of positive squares in 3 ways, for example, as 4138220241 + 1505207209 = 64329^2 + 38797^2 .

It is not an unprimeable number, because it can be changed into a prime (5643427451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56434225 + ... + 56434324.

Almost surely, 2^5643427450 is an apocalyptic number.

5643427450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5643427450 is a deficient number, since it is larger than the sum of its proper divisors (4853347700).

5643427450 is a wasteful number, since it uses less digits than its factorization.

5643427450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112868561 (or 112868556 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 40.

The square root of 5643427450 is about 75122.7492175306. The cubic root of 5643427450 is about 1780.3865938490.

The spelling of 5643427450 in words is "five billion, six hundred forty-three million, four hundred twenty-seven thousand, four hundred fifty".