64647445711 has 2 divisors, whose sum is σ = 64647445712. Its totient is φ = 64647445710.

The previous prime is 64647445703. The next prime is 64647445727. The reversal of 64647445711 is 11754474646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64647445711 - 2³ = 64647445703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64647445741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32323722855 + 32323722856.

It is an arithmetic number, because the mean of its divisors is an integer number (32323722856).

Almost surely, 2^64647445711 is an apocalyptic number.

64647445711 is a deficient number, since it is larger than the sum of its proper divisors (1).

64647445711 is an equidigital number, since it uses as much as digits as its factorization.

64647445711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 49.

The spelling of 64647445711 in words is "sixty-four billion, six hundred forty-seven million, four hundred forty-five thousand, seven hundred eleven".