649096894571 has 2 divisors, whose sum is σ = 649096894572. Its totient is φ = 649096894570.

The previous prime is 649096894547. The next prime is 649096894577. The reversal of 649096894571 is 175498690946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 649096894571 - 2¹⁴ = 649096878187 is a prime.

It is not a weakly prime, because it can be changed into another prime (649096894577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324548447285 + 324548447286.

It is an arithmetic number, because the mean of its divisors is an integer number (324548447286).

Almost surely, 2^649096894571 is an apocalyptic number.

649096894571 is a deficient number, since it is larger than the sum of its proper divisors (1).

649096894571 is an equidigital number, since it uses as much as digits as its factorization.

649096894571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 649096894571 in words is "six hundred forty-nine billion, ninety-six million, eight hundred ninety-four thousand, five hundred seventy-one".