68331863 has 2 divisors, whose sum is σ = 68331864. Its totient is φ = 68331862.

The previous prime is 68331839. The next prime is 68331877. The reversal of 68331863 is 36813386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68331863 - 2²⁰ = 67283287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68331803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34165931 + 34165932.

It is an arithmetic number, because the mean of its divisors is an integer number (34165932).

Almost surely, 2^68331863 is an apocalyptic number.

68331863 is a deficient number, since it is larger than the sum of its proper divisors (1).

68331863 is an equidigital number, since it uses as much as digits as its factorization.

68331863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 68331863 is about 8266.3089102694. The cubic root of 68331863 is about 408.8284281857.

The spelling of 68331863 in words is "sixty-eight million, three hundred thirty-one thousand, eight hundred sixty-three".