68731013786 has 8 divisors (see below), whose sum is σ = 103097688564. Its totient is φ = 34365117600.

The previous prime is 68731013723. The next prime is 68731013789.

68731013786 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 68024464225 + 706549561 = 260815^2 + 26581^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68731013789) 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, 143606 + ... + 397598.

Almost surely, 2^68731013786 is an apocalyptic number.

68731013786 is a deficient number, since it is larger than the sum of its proper divisors (34366674778).

68731013786 is a wasteful number, since it uses less digits than its factorization.

68731013786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389296.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 68731013786 in words is "sixty-eight billion, seven hundred thirty-one million, thirteen thousand, seven hundred eighty-six".