17145863320443 has 24 divisors (see below), whose sum is σ = 27005426475840. Its totient is φ = 9592091364960.

The previous prime is 17145863320387. The next prime is 17145863320489. The reversal of 17145863320443 is 34402336854171.

It is not a de Polignac number, because 17145863320443 - 2¹² = 17145863316347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17145863320043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1537188553 + ... + 1537199706.

It is an arithmetic number, because the mean of its divisors is an integer number (1125226103160).

Almost surely, 2^{17145863320443} is an apocalyptic number.

17145863320443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

17145863320443 is a deficient number, since it is larger than the sum of its proper divisors (9859563155397).

17145863320443 is a wasteful number, since it uses less digits than its factorization.

17145863320443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074388299 (or 3074388286 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 17145863320443 in words is "seventeen trillion, one hundred forty-five billion, eight hundred sixty-three million, three hundred twenty thousand, four hundred forty-three".