468640069 has 2 divisors, whose sum is σ = 468640070. Its totient is φ = 468640068.

The previous prime is 468640063. The next prime is 468640093. The reversal of 468640069 is 960046864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280127169 + 188512900 = 16737^2 + 13730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-468640069 is a prime.

It is a super-2 number, since 2×468640069² = 439247028544649522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468640063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234320034 + 234320035.

It is an arithmetic number, because the mean of its divisors is an integer number (234320035).

Almost surely, 2^468640069 is an apocalyptic number.

It is an amenable number.

468640069 is a deficient number, since it is larger than the sum of its proper divisors (1).

468640069 is an equidigital number, since it uses as much as digits as its factorization.

468640069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 468640069 is about 21648.0961980494. The cubic root of 468640069 is about 776.7473961982.

The spelling of 468640069 in words is "four hundred sixty-eight million, six hundred forty thousand, sixty-nine".