68738608715 has 16 divisors (see below), whose sum is σ = 94512450240. Its totient is φ = 47013866880.

The previous prime is 68738608691. The next prime is 68738608717. The reversal of 68738608715 is 51780683786.

It is a happy number.

It is not a de Polignac number, because 68738608715 - 2⁶ = 68738608651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68738608717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2510756 + ... + 2537985.

It is an arithmetic number, because the mean of its divisors is an integer number (5907028140).

Almost surely, 2^68738608715 is an apocalyptic number.

68738608715 is a deficient number, since it is larger than the sum of its proper divisors (25773841525).

68738608715 is a wasteful number, since it uses less digits than its factorization.

68738608715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049142.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 68738608715 in words is "sixty-eight billion, seven hundred thirty-eight million, six hundred eight thousand, seven hundred fifteen".