143685687493768 has 16 divisors (see below), whose sum is σ = 307897901772480. Its totient is φ = 61579580354448.

The previous prime is 143685687493759. The next prime is 143685687493787. The reversal of 143685687493768 is 867394786586341.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282907923996 + ... + 1282907924107.

It is an arithmetic number, because the mean of its divisors is an integer number (19243618860780).

Almost surely, 2^{143685687493768} is an apocalyptic number.

It is an amenable number.

143685687493768 is an abundant number, since it is smaller than the sum of its proper divisors (164212214278712).

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

143685687493768 is a wasteful number, since it uses less digits than its factorization.

143685687493768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565815848116 (or 2565815848112 counting only the distinct ones).

The product of its digits is 35115171840, while the sum is 85.

The spelling of 143685687493768 in words is "one hundred forty-three trillion, six hundred eighty-five billion, six hundred eighty-seven million, four hundred ninety-three thousand, seven hundred sixty-eight".