650640636467 has 2 divisors, whose sum is σ = 650640636468. Its totient is φ = 650640636466.

The previous prime is 650640636427. The next prime is 650640636539. The reversal of 650640636467 is 764636046056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 650640636467 - 2⁶ = 650640636403 is a prime.

It is not a weakly prime, because it can be changed into another prime (650640636407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325320318233 + 325320318234.

It is an arithmetic number, because the mean of its divisors is an integer number (325320318234).

Almost surely, 2^650640636467 is an apocalyptic number.

650640636467 is a deficient number, since it is larger than the sum of its proper divisors (1).

650640636467 is an equidigital number, since it uses as much as digits as its factorization.

650640636467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 650640636467 in words is "six hundred fifty billion, six hundred forty million, six hundred thirty-six thousand, four hundred sixty-seven".