163729535738 has 8 divisors (see below), whose sum is σ = 249259890432. Its totient is φ = 80642905596.

The previous prime is 163729535693. The next prime is 163729535773. The reversal of 163729535738 is 837535927361.

163729535738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 610930970 + ... + 610931237.

It is an arithmetic number, because the mean of its divisors is an integer number (31157486304).

Almost surely, 2^163729535738 is an apocalyptic number.

163729535738 is a deficient number, since it is larger than the sum of its proper divisors (85530354694).

163729535738 is a wasteful number, since it uses less digits than its factorization.

163729535738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221862276.

The product of its digits is 28576800, while the sum is 59.

The spelling of 163729535738 in words is "one hundred sixty-three billion, seven hundred twenty-nine million, five hundred thirty-five thousand, seven hundred thirty-eight".