68308387371 has 32 divisors (see below), whose sum is σ = 115789639680. Its totient is φ = 38987725248.

The previous prime is 68308387297. The next prime is 68308387393. The reversal of 68308387371 is 17378380386.

It is not a de Polignac number, because 68308387371 - 2⁹ = 68308386859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68308382371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48891 + ... + 372836.

It is an arithmetic number, because the mean of its divisors is an integer number (3618426240).

Almost surely, 2^68308387371 is an apocalyptic number.

68308387371 is a deficient number, since it is larger than the sum of its proper divisors (47481252309).

68308387371 is a wasteful number, since it uses less digits than its factorization.

68308387371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422600 (or 422594 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 68308387371 in words is "sixty-eight billion, three hundred eight million, three hundred eighty-seven thousand, three hundred seventy-one".