68764427141 has 4 divisors (see below), whose sum is σ = 68766441900. Its totient is φ = 68762412384.

The previous prime is 68764427131. The next prime is 68764427177. The reversal of 68764427141 is 14172446786.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2176689025 + 66587738116 = 46655^2 + 258046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68764427141 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 68764427141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68764427101) 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, 955286 + ... + 1024743.

It is an arithmetic number, because the mean of its divisors is an integer number (17191610475).

Almost surely, 2^68764427141 is an apocalyptic number.

It is an amenable number.

68764427141 is a deficient number, since it is larger than the sum of its proper divisors (2014759).

68764427141 is a wasteful number, since it uses less digits than its factorization.

68764427141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014758.

The product of its digits is 1806336, while the sum is 50.

The spelling of 68764427141 in words is "sixty-eight billion, seven hundred sixty-four million, four hundred twenty-seven thousand, one hundred forty-one".