68818763 has 16 divisors (see below), whose sum is σ = 76263936. Its totient is φ = 61702560.

The previous prime is 68818747. The next prime is 68818781. The reversal of 68818763 is 36781886.

It is a cyclic number.

It is not a de Polignac number, because 68818763 - 2⁴ = 68818747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68818723) 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, 99248 + ... + 99938.

It is an arithmetic number, because the mean of its divisors is an integer number (4766496).

Almost surely, 2^68818763 is an apocalyptic number.

68818763 is a deficient number, since it is larger than the sum of its proper divisors (7445173).

68818763 is a wasteful number, since it uses less digits than its factorization.

68818763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its digits is 387072, while the sum is 47.

The square root of 68818763 is about 8295.7075044869. The cubic root of 68818763 is about 409.7971691567.

The spelling of 68818763 in words is "sixty-eight million, eight hundred eighteen thousand, seven hundred sixty-three".