68036779458 has 24 divisors (see below), whose sum is σ = 153822284928. Its totient is φ = 21692886072.

The previous prime is 68036779457. The next prime is 68036779519. The reversal of 68036779458 is 85497763086.

68036779458 is a `hidden beast` number, since 6 + 80 + 36 + 7 + 79 + 458 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68036779395 and 68036779404.

It is not an unprimeable number, because it can be changed into a prime (68036779453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82169610 + ... + 82170437.

It is an arithmetic number, because the mean of its divisors is an integer number (6409261872).

Almost surely, 2^68036779458 is an apocalyptic number.

68036779458 is an abundant number, since it is smaller than the sum of its proper divisors (85785505470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68036779458 is a wasteful number, since it uses less digits than its factorization.

68036779458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164340078 (or 164340075 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 68036779458 in words is "sixty-eight billion, thirty-six million, seven hundred seventy-nine thousand, four hundred fifty-eight".