39468902173 has 4 divisors (see below), whose sum is σ = 39686962588. Its totient is φ = 39250841760.

The previous prime is 39468902171. The next prime is 39468902233. The reversal of 39468902173 is 37120986493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37120986493 = 29 ⋅1280034017.

It can be written as a sum of positive squares in 2 ways, for example, as 16109447929 + 23359454244 = 126923^2 + 152838^2 .

It is a cyclic number.

It is not a de Polignac number, because 39468902173 - 2¹ = 39468902171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39468902173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39468902171) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 109029936 + ... + 109030297.

It is an arithmetic number, because the mean of its divisors is an integer number (9921740647).

Almost surely, 2^39468902173 is an apocalyptic number.

It is an amenable number.

39468902173 is a deficient number, since it is larger than the sum of its proper divisors (218060415).

39468902173 is a wasteful number, since it uses less digits than its factorization.

39468902173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218060414.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 39468902173 in words is "thirty-nine billion, four hundred sixty-eight million, nine hundred two thousand, one hundred seventy-three".