172809842499316 has 48 divisors (see below), whose sum is σ = 330459060258432. Its totient is φ = 78419171792000.

The previous prime is 172809842499271. The next prime is 172809842499361. The reversal of 172809842499316 is 613994248908271.

It is an interprime number because it is at equal distance from previous prime (172809842499271) and next prime (172809842499361).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158853510 + ... + 159937666.

It is an arithmetic number, because the mean of its divisors is an integer number (6884563755384).

Almost surely, 2^{172809842499316} is an apocalyptic number.

It is an amenable number.

172809842499316 is a deficient number, since it is larger than the sum of its proper divisors (157649217759116).

172809842499316 is a wasteful number, since it uses less digits than its factorization.

172809842499316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090200 (or 1090198 counting only the distinct ones).

The product of its (nonzero) digits is 376233984, while the sum is 73.

The spelling of 172809842499316 in words is "one hundred seventy-two trillion, eight hundred nine billion, eight hundred forty-two million, four hundred ninety-nine thousand, three hundred sixteen".