68252164647 has 8 divisors (see below), whose sum is σ = 91004242560. Its totient is φ = 45500764920.

The previous prime is 68252164627. The next prime is 68252164679. The reversal of 68252164647 is 74646125286.

68252164647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 68252164647 - 2¹² = 68252160551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68252164647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68252164627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152872 + ... + 399842.

It is an arithmetic number, because the mean of its divisors is an integer number (11375530320).

Almost surely, 2^68252164647 is an apocalyptic number.

68252164647 is a deficient number, since it is larger than the sum of its proper divisors (22752077913).

68252164647 is a wasteful number, since it uses less digits than its factorization.

68252164647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339093.

The product of its digits is 3870720, while the sum is 51.

The spelling of 68252164647 in words is "sixty-eight billion, two hundred fifty-two million, one hundred sixty-four thousand, six hundred forty-seven".