4640041023647 has 2 divisors, whose sum is σ = 4640041023648. Its totient is φ = 4640041023646.

The previous prime is 4640041023643. The next prime is 4640041023701. The reversal of 4640041023647 is 7463201400464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4640041023647 - 2² = 4640041023643 is a prime.

It is a super-2 number, since 2×4640041023647² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4640041023641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320020511823 + 2320020511824.

It is an arithmetic number, because the mean of its divisors is an integer number (2320020511824).

Almost surely, 2^{4640041023647} is an apocalyptic number.

4640041023647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640041023647 is an equidigital number, since it uses as much as digits as its factorization.

4640041023647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 4640041023647 in words is "four trillion, six hundred forty billion, forty-one million, twenty-three thousand, six hundred forty-seven".