19923078917182 has 16 divisors (see below), whose sum is σ = 34473044430720. Its totient is φ = 8458663678488.

The previous prime is 19923078917171. The next prime is 19923078917219. The reversal of 19923078917182 is 28171987032991.

It is a super-2 number, since 2×19923078917182² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6649891332 + ... + 6649894327.

It is an arithmetic number, because the mean of its divisors is an integer number (2154565276920).

Almost surely, 2^{19923078917182} is an apocalyptic number.

19923078917182 is a deficient number, since it is larger than the sum of its proper divisors (14549965513538).

19923078917182 is a wasteful number, since it uses less digits than its factorization.

19923078917182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13299785775.

The product of its (nonzero) digits is 27433728, while the sum is 67.

The spelling of 19923078917182 in words is "nineteen trillion, nine hundred twenty-three billion, seventy-eight million, nine hundred seventeen thousand, one hundred eighty-two".