4640041023641 has 2 divisors, whose sum is σ = 4640041023642. Its totient is φ = 4640041023640.

The previous prime is 4640041023613. The next prime is 4640041023643. The reversal of 4640041023641 is 1463201400464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4594253583241 + 45787440400 = 2143421^2 + 213980^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640041023641 - 2⁴² = 241994512537 is a prime.

It is a Sophie Germain prime.

Together with 4640041023643, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4640041023643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320020511820 + 2320020511821.

It is an arithmetic number, because the mean of its divisors is an integer number (2320020511821).

Almost surely, 2^{4640041023641} is an apocalyptic number.

It is an amenable number.

4640041023641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640041023641 is an equidigital number, since it uses as much as digits as its factorization.

4640041023641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 4640041023641 in words is "four trillion, six hundred forty billion, forty-one million, twenty-three thousand, six hundred forty-one".