1917852423 has 16 divisors (see below), whose sum is σ = 2595748320. Its totient is φ = 1259311104.

The previous prime is 1917852397. The next prime is 1917852473. The reversal of 1917852423 is 3242587191.

It is not a de Polignac number, because 1917852423 - 2⁹ = 1917851911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1917852473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163623 + ... + 174951.

It is an arithmetic number, because the mean of its divisors is an integer number (162234270).

Almost surely, 2^1917852423 is an apocalyptic number.

1917852423 is a deficient number, since it is larger than the sum of its proper divisors (677895897).

1917852423 is a wasteful number, since it uses less digits than its factorization.

1917852423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178.

The product of its digits is 120960, while the sum is 42.

The square root of 1917852423 is about 43793.2919863305. The cubic root of 1917852423 is about 1242.4294252564.

The spelling of 1917852423 in words is "one billion, nine hundred seventeen million, eight hundred fifty-two thousand, four hundred twenty-three".