29169473642 has 16 divisors (see below), whose sum is σ = 44262838152. Its totient is φ = 14416108800.

The previous prime is 29169473633. The next prime is 29169473687. The reversal of 29169473642 is 24637496192.

It can be written as a sum of positive squares in 4 ways, for example, as 22419372361 + 6750101281 = 149731^2 + 82159^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164609 + ... + 292292.

Almost surely, 2^29169473642 is an apocalyptic number.

29169473642 is a deficient number, since it is larger than the sum of its proper divisors (15093364510).

29169473642 is a wasteful number, since it uses less digits than its factorization.

29169473642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457273.

The product of its digits is 3919104, while the sum is 53.

The spelling of 29169473642 in words is "twenty-nine billion, one hundred sixty-nine million, four hundred seventy-three thousand, six hundred forty-two".