68136336832 has 14 divisors (see below), whose sum is σ = 135208043528. Its totient is φ = 34068168384.

The previous prime is 68136336809. The next prime is 68136336859. The reversal of 68136336832 is 23863363186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532315068 + ... + 532315195.

Almost surely, 2^68136336832 is an apocalyptic number.

It is an amenable number.

68136336832 is a deficient number, since it is larger than the sum of its proper divisors (67071706696).

68136336832 is a wasteful number, since it uses less digits than its factorization.

68136336832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064630275 (or 1064630265 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 49.

The spelling of 68136336832 in words is "sixty-eight billion, one hundred thirty-six million, three hundred thirty-six thousand, eight hundred thirty-two".