68342663 has 16 divisors (see below), whose sum is σ = 72084480. Its totient is φ = 64730016.

The previous prime is 68342633. The next prime is 68342699. The reversal of 68342663 is 36624386.

It is a cyclic number.

It is not a de Polignac number, because 68342663 - 2²⁴ = 51565447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68342623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300956 + ... + 301182.

It is an arithmetic number, because the mean of its divisors is an integer number (4505280).

Almost surely, 2^68342663 is an apocalyptic number.

68342663 is a deficient number, since it is larger than the sum of its proper divisors (3741817).

68342663 is a wasteful number, since it uses less digits than its factorization.

68342663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its digits is 124416, while the sum is 38.

The square root of 68342663 is about 8266.9621385367. The cubic root of 68342663 is about 408.8499657927.

The spelling of 68342663 in words is "sixty-eight million, three hundred forty-two thousand, six hundred sixty-three".