3640574669827 has 2 divisors, whose sum is σ = 3640574669828. Its totient is φ = 3640574669826.

The previous prime is 3640574669821. The next prime is 3640574669833. The reversal of 3640574669827 is 7289664750463.

It is a balanced prime because it is at equal distance from previous prime (3640574669821) and next prime (3640574669833).

It is an emirp because it is prime and its reverse (7289664750463) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3640574669827 is a prime.

It is not a weakly prime, because it can be changed into another prime (3640574669821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820287334913 + 1820287334914.

It is an arithmetic number, because the mean of its divisors is an integer number (1820287334914).

Almost surely, 2^{3640574669827} is an apocalyptic number.

3640574669827 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640574669827 is an equidigital number, since it uses as much as digits as its factorization.

3640574669827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 365783040, while the sum is 67.

The spelling of 3640574669827 in words is "three trillion, six hundred forty billion, five hundred seventy-four million, six hundred sixty-nine thousand, eight hundred twenty-seven".