19436123164 has 12 divisors (see below), whose sum is σ = 34023811024. Its totient is φ = 9715034304.

The previous prime is 19436123153. The next prime is 19436123173. The reversal of 19436123164 is 46132163491.

It is a congruent number.

It is an unprimeable number.

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, 742344 + ... + 768079.

Almost surely, 2^19436123164 is an apocalyptic number.

It is an amenable number.

19436123164 is a deficient number, since it is larger than the sum of its proper divisors (14587687860).

19436123164 is a wasteful number, since it uses less digits than its factorization.

19436123164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513644 (or 1513642 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The spelling of 19436123164 in words is "nineteen billion, four hundred thirty-six million, one hundred twenty-three thousand, one hundred sixty-four".