19436243504 has 40 divisors (see below), whose sum is σ = 38388168000. Its totient is φ = 9530413376.

The previous prime is 19436243473. The next prime is 19436243543. The reversal of 19436243504 is 40534263491.

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, 370967 + ... + 420105.

It is an arithmetic number, because the mean of its divisors is an integer number (959704200).

Almost surely, 2^19436243504 is an apocalyptic number.

It is an amenable number.

19436243504 is a deficient number, since it is larger than the sum of its proper divisors (18951924496).

19436243504 is a wasteful number, since it uses less digits than its factorization.

19436243504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49625 (or 49619 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 19436243504 in words is "nineteen billion, four hundred thirty-six million, two hundred forty-three thousand, five hundred four".