68703845061 has 4 divisors (see below), whose sum is σ = 91605126752. Its totient is φ = 45802563372.

The previous prime is 68703845053. The next prime is 68703845071. The reversal of 68703845061 is 16054830786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68703845061 - 2³ = 68703845053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68703845061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68703845071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11450640841 + ... + 11450640846.

It is an arithmetic number, because the mean of its divisors is an integer number (22901281688).

Almost surely, 2^68703845061 is an apocalyptic number.

It is an amenable number.

68703845061 is a deficient number, since it is larger than the sum of its proper divisors (22901281691).

68703845061 is a wasteful number, since it uses less digits than its factorization.

68703845061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22901281690.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 68703845061 in words is "sixty-eight billion, seven hundred three million, eight hundred forty-five thousand, sixty-one".