648863992967 has 2 divisors, whose sum is σ = 648863992968. Its totient is φ = 648863992966.

The previous prime is 648863992879. The next prime is 648863992999. The reversal of 648863992967 is 769299368846.

648863992967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 648863992967 - 2¹⁴ = 648863976583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648863992067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324431996483 + 324431996484.

It is an arithmetic number, because the mean of its divisors is an integer number (324431996484).

Almost surely, 2^648863992967 is an apocalyptic number.

648863992967 is a deficient number, since it is larger than the sum of its proper divisors (1).

648863992967 is an equidigital number, since it uses as much as digits as its factorization.

648863992967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693052928, while the sum is 77.

The spelling of 648863992967 in words is "six hundred forty-eight billion, eight hundred sixty-three million, nine hundred ninety-two thousand, nine hundred sixty-seven".