68083787986 has 8 divisors (see below), whose sum is σ = 104885835660. Its totient is φ = 33121842768.

The previous prime is 68083787971. The next prime is 68083788007. The reversal of 68083787986 is 68978738086.

68083787986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61164709225 + 6919078761 = 247315^2 + 83181^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460025521 + ... + 460025668.

Almost surely, 2^68083787986 is an apocalyptic number.

68083787986 is a deficient number, since it is larger than the sum of its proper divisors (36802047674).

68083787986 is a wasteful number, since it uses less digits than its factorization.

68083787986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920051228.

The product of its (nonzero) digits is 195084288, while the sum is 70.

The spelling of 68083787986 in words is "sixty-eight billion, eighty-three million, seven hundred eighty-seven thousand, nine hundred eighty-six".