985650433643 has 2 divisors, whose sum is σ = 985650433644. Its totient is φ = 985650433642.

The previous prime is 985650433637. The next prime is 985650433657. The reversal of 985650433643 is 346334056589.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985650433643 - 2¹⁴ = 985650417259 is a prime.

It is not a weakly prime, because it can be changed into another prime (985650433693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492825216821 + 492825216822.

It is an arithmetic number, because the mean of its divisors is an integer number (492825216822).

Almost surely, 2^985650433643 is an apocalyptic number.

985650433643 is a deficient number, since it is larger than the sum of its proper divisors (1).

985650433643 is an equidigital number, since it uses as much as digits as its factorization.

985650433643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 985650433643 in words is "nine hundred eighty-five billion, six hundred fifty million, four hundred thirty-three thousand, six hundred forty-three".