5643670401 has 6 divisors (see below), whose sum is σ = 8151968370. Its totient is φ = 3762446928.

The previous prime is 5643670289. The next prime is 5643670423. The reversal of 5643670401 is 1040763465.

It is a happy number.

5643670401 is a `hidden beast` number, since 5 + 643 + 6 + 7 + 0 + 4 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3455676225 + 2187994176 = 58785^2 + 46776^2 .

It is not a de Polignac number, because 5643670401 - 2¹⁵ = 5643637633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5643670441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313537236 + ... + 313537253.

It is an arithmetic number, because the mean of its divisors is an integer number (1358661395).

Almost surely, 2^5643670401 is an apocalyptic number.

It is an amenable number.

5643670401 is a deficient number, since it is larger than the sum of its proper divisors (2508297969).

5643670401 is a wasteful number, since it uses less digits than its factorization.

5643670401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627074495 (or 627074492 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 5643670401 is about 75124.3662269440. The cubic root of 5643670401 is about 1780.4121421823.

The spelling of 5643670401 in words is "five billion, six hundred forty-three million, six hundred seventy thousand, four hundred one".