2664351806843 has 2 divisors, whose sum is σ = 2664351806844. Its totient is φ = 2664351806842.

The previous prime is 2664351806819. The next prime is 2664351806867. The reversal of 2664351806843 is 3486081534662.

It is a balanced prime because it is at equal distance from previous prime (2664351806819) and next prime (2664351806867).

It is a cyclic number.

It is not a de Polignac number, because 2664351806843 - 2³² = 2660056839547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2664351806813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332175903421 + 1332175903422.

It is an arithmetic number, because the mean of its divisors is an integer number (1332175903422).

Almost surely, 2^{2664351806843} is an apocalyptic number.

2664351806843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664351806843 is an equidigital number, since it uses as much as digits as its factorization.

2664351806843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 56.

The spelling of 2664351806843 in words is "two trillion, six hundred sixty-four billion, three hundred fifty-one million, eight hundred six thousand, eight hundred forty-three".