68334725387 has 4 divisors (see below), whose sum is σ = 68335317000. Its totient is φ = 68334133776.

The previous prime is 68334725377. The next prime is 68334725399. The reversal of 68334725387 is 78352743386.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68334725387 - 2²⁶ = 68267616523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68334725357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59762 + ... + 374487.

It is an arithmetic number, because the mean of its divisors is an integer number (17083829250).

Almost surely, 2^68334725387 is an apocalyptic number.

68334725387 is a deficient number, since it is larger than the sum of its proper divisors (591613).

68334725387 is a wasteful number, since it uses less digits than its factorization.

68334725387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591612.

The product of its digits is 20321280, while the sum is 56.

The spelling of 68334725387 in words is "sixty-eight billion, three hundred thirty-four million, seven hundred twenty-five thousand, three hundred eighty-seven".