4243662113651 has 2 divisors, whose sum is σ = 4243662113652. Its totient is φ = 4243662113650.

The previous prime is 4243662113563. The next prime is 4243662113693. The reversal of 4243662113651 is 1563112663424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243662113651 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243662113851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121831056825 + 2121831056826.

It is an arithmetic number, because the mean of its divisors is an integer number (2121831056826).

Almost surely, 2^{4243662113651} is an apocalyptic number.

4243662113651 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243662113651 is an equidigital number, since it uses as much as digits as its factorization.

4243662113651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The spelling of 4243662113651 in words is "four trillion, two hundred forty-three billion, six hundred sixty-two million, one hundred thirteen thousand, six hundred fifty-one".