5640894193 has 8 divisors (see below), whose sum is σ = 6167056896. Its totient is φ = 5116957200.

The previous prime is 5640894167. The next prime is 5640894209. The reversal of 5640894193 is 3914980465.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5640894193 is a prime.

It is a super-2 number, since 2×5640894193² = 63639374593242242498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5640894143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551121 + ... + 561262.

It is an arithmetic number, because the mean of its divisors is an integer number (770882112).

Almost surely, 2^5640894193 is an apocalyptic number.

It is an amenable number.

5640894193 is a deficient number, since it is larger than the sum of its proper divisors (526162703).

5640894193 is a wasteful number, since it uses less digits than its factorization.

5640894193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112855.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 5640894193 is about 75105.8865402706. The cubic root of 5640894193 is about 1780.1201569563.

The spelling of 5640894193 in words is "five billion, six hundred forty million, eight hundred ninety-four thousand, one hundred ninety-three".