4633640426669 has 2 divisors, whose sum is σ = 4633640426670. Its totient is φ = 4633640426668.

The previous prime is 4633640426647. The next prime is 4633640426671. The reversal of 4633640426669 is 9666240463364.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3226657764100 + 1406982662569 = 1796290^2 + 1186163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4633640426669 is a prime.

It is a super-2 number, since 2×4633640426669² (a number of 26 digits) contains 22 as substring.

Together with 4633640426671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4633640426069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2316820213334 + 2316820213335.

It is an arithmetic number, because the mean of its divisors is an integer number (2316820213335).

Almost surely, 2^{4633640426669} is an apocalyptic number.

It is an amenable number.

4633640426669 is a deficient number, since it is larger than the sum of its proper divisors (1).

4633640426669 is an equidigital number, since it uses as much as digits as its factorization.

4633640426669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80621568, while the sum is 59.

The spelling of 4633640426669 in words is "four trillion, six hundred thirty-three billion, six hundred forty million, four hundred twenty-six thousand, six hundred sixty-nine".