68299507578 has 8 divisors (see below), whose sum is σ = 136599015168. Its totient is φ = 22766502524.

The previous prime is 68299507567. The next prime is 68299507579. The reversal of 68299507578 is 87570599286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

68299507578 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (68299507579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5691625626 + ... + 5691625637.

It is an arithmetic number, because the mean of its divisors is an integer number (17074876896).

Almost surely, 2^68299507578 is an apocalyptic number.

68299507578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68299507578 is a wasteful number, since it uses less digits than its factorization.

68299507578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11383251268.

The product of its (nonzero) digits is 76204800, while the sum is 66.

The spelling of 68299507578 in words is "sixty-eight billion, two hundred ninety-nine million, five hundred seven thousand, five hundred seventy-eight".