4468346639 has 2 divisors, whose sum is σ = 4468346640. Its totient is φ = 4468346638.

The previous prime is 4468346621. The next prime is 4468346669. The reversal of 4468346639 is 9366438644.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4468346639 - 2³² = 173379343 is a prime.

It is a super-2 number, since 2×4468346639² = 39932243372525192642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4468346669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2234173319 + 2234173320.

It is an arithmetic number, because the mean of its divisors is an integer number (2234173320).

Almost surely, 2^4468346639 is an apocalyptic number.

4468346639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4468346639 is an equidigital number, since it uses as much as digits as its factorization.

4468346639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 53.

The square root of 4468346639 is about 66845.6927482990. The cubic root of 4468346639 is about 1647.0835089689.

The spelling of 4468346639 in words is "four billion, four hundred sixty-eight million, three hundred forty-six thousand, six hundred thirty-nine".