68841042864136 has 32 divisors (see below), whose sum is σ = 131315825047680. Its totient is φ = 33826607180800.

The previous prime is 68841042864107. The next prime is 68841042864157. The reversal of 68841042864136 is 63146824014886.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194677081 + ... + 195030376.

It is an arithmetic number, because the mean of its divisors is an integer number (4103619532740).

Almost surely, 2^{68841042864136} is an apocalyptic number.

It is an amenable number.

68841042864136 is a deficient number, since it is larger than the sum of its proper divisors (62474782183544).

68841042864136 is a wasteful number, since it uses less digits than its factorization.

68841042864136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389707845 (or 389707841 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 61.

The spelling of 68841042864136 in words is "sixty-eight trillion, eight hundred forty-one billion, forty-two million, eight hundred sixty-four thousand, one hundred thirty-six".