68588678042 has 4 divisors (see below), whose sum is σ = 102883017066. Its totient is φ = 34294339020.

The previous prime is 68588678033. The next prime is 68588678069. The reversal of 68588678042 is 24087688586.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58322733001 + 10265945041 = 241501^2 + 101321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17147169509 + ... + 17147169512.

Almost surely, 2^68588678042 is an apocalyptic number.

68588678042 is a deficient number, since it is larger than the sum of its proper divisors (34294339024).

68588678042 is a wasteful number, since it uses less digits than its factorization.

68588678042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34294339023.

The product of its (nonzero) digits is 41287680, while the sum is 62.

The spelling of 68588678042 in words is "sixty-eight billion, five hundred eighty-eight million, six hundred seventy-eight thousand, forty-two".