5645243763 has 12 divisors (see below), whose sum is σ = 8508773520. Its totient is φ = 3599865456.

The previous prime is 5645243759. The next prime is 5645243801. The reversal of 5645243763 is 3673425465.

5645243763 is a `hidden beast` number, since 5 + 64 + 524 + 3 + 7 + 63 = 666.

It is not a de Polignac number, because 5645243763 - 2² = 5645243759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5645243563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13635648 + ... + 13636061.

It is an arithmetic number, because the mean of its divisors is an integer number (709064460).

Almost surely, 2^5645243763 is an apocalyptic number.

5645243763 is a deficient number, since it is larger than the sum of its proper divisors (2863529757).

5645243763 is a wasteful number, since it uses less digits than its factorization.

5645243763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27271738 (or 27271735 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 45.

The square root of 5645243763 is about 75134.8372128402. The cubic root of 5645243763 is about 1780.5775766329.

The spelling of 5645243763 in words is "five billion, six hundred forty-five million, two hundred forty-three thousand, seven hundred sixty-three".