68969911872144 has 40 divisors (see below), whose sum is σ = 185918892875712. Its totient is φ = 21990406683520.

The previous prime is 68969911872143. The next prime is 68969911872151. The reversal of 68969911872144 is 44127811996986.

It is not an unprimeable number, because it can be changed into a prime (68969911872143) 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, 31236372027 + ... + 31236374234.

Almost surely, 2^{68969911872144} is an apocalyptic number.

It is an amenable number.

68969911872144 is an abundant number, since it is smaller than the sum of its proper divisors (116948981003568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68969911872144 is a wasteful number, since it uses less digits than its factorization.

68969911872144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62472746295 (or 62472746289 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 75.

The spelling of 68969911872144 in words is "sixty-eight trillion, nine hundred sixty-nine billion, nine hundred eleven million, eight hundred seventy-two thousand, one hundred forty-four".