164289487538 has 16 divisors (see below), whose sum is σ = 269794069920. Its totient is φ = 74411282400.

The previous prime is 164289487513. The next prime is 164289487567. The reversal of 164289487538 is 835784982461.

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, 13281548 + ... + 13293911.

It is an arithmetic number, because the mean of its divisors is an integer number (16862129370).

Almost surely, 2^164289487538 is an apocalyptic number.

164289487538 is a deficient number, since it is larger than the sum of its proper divisors (105504582382).

164289487538 is a wasteful number, since it uses less digits than its factorization.

164289487538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26575753.

The product of its digits is 92897280, while the sum is 65.

The spelling of 164289487538 in words is "one hundred sixty-four billion, two hundred eighty-nine million, four hundred eighty-seven thousand, five hundred thirty-eight".