4638368269 has 2 divisors, whose sum is σ = 4638368270. Its totient is φ = 4638368268.

The previous prime is 4638368263. The next prime is 4638368309. The reversal of 4638368269 is 9628638364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3193380100 + 1444988169 = 56510^2 + 38013^2 .

It is a cyclic number.

It is not a de Polignac number, because 4638368269 - 2⁹ = 4638367757 is a prime.

It is a super-2 number, since 2×4638368269² = 43028920397732112722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4638368263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2319184134 + 2319184135.

It is an arithmetic number, because the mean of its divisors is an integer number (2319184135).

Almost surely, 2^4638368269 is an apocalyptic number.

It is an amenable number.

4638368269 is a deficient number, since it is larger than the sum of its proper divisors (1).

4638368269 is an equidigital number, since it uses as much as digits as its factorization.

4638368269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 55.

The square root of 4638368269 is about 68105.5670925659. The cubic root of 4638368269 is about 1667.7146442987.

The spelling of 4638368269 in words is "four billion, six hundred thirty-eight million, three hundred sixty-eight thousand, two hundred sixty-nine".