5643940371 has 16 divisors (see below), whose sum is σ = 7572085248. Its totient is φ = 3739240800.

The previous prime is 5643940343. The next prime is 5643940397. The reversal of 5643940371 is 1730493465.

It is not a de Polignac number, because 5643940371 - 2¹⁰ = 5643939347 is a prime.

It is a super-2 number, since 2×5643940371² = 63708125822807235282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5643940871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076326 + ... + 1081556.

It is an arithmetic number, because the mean of its divisors is an integer number (473255328).

Almost surely, 2^5643940371 is an apocalyptic number.

5643940371 is a deficient number, since it is larger than the sum of its proper divisors (1928144877).

5643940371 is a wasteful number, since it uses less digits than its factorization.

5643940371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7402.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 5643940371 is about 75126.1630259392. The cubic root of 5643940371 is about 1780.4405309298.

The spelling of 5643940371 in words is "five billion, six hundred forty-three million, nine hundred forty thousand, three hundred seventy-one".