19635430136 has 32 divisors (see below), whose sum is σ = 42934620000. Its totient is φ = 8415183168.

The previous prime is 19635430127. The next prime is 19635430141. The reversal of 19635430136 is 63103453691.

It is a junction number, because it is equal to n+sod(n) for n = 19635430093 and 19635430102.

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 7 ways as a sum of consecutive naturals, for example, 3575141 + ... + 3580628.

It is an arithmetic number, because the mean of its divisors is an integer number (1341706875).

Almost surely, 2^19635430136 is an apocalyptic number.

It is an amenable number.

19635430136 is an abundant number, since it is smaller than the sum of its proper divisors (23299189864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19635430136 is an equidigital number, since it uses as much as digits as its factorization.

19635430136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7155796 (or 7155778 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 19635430136 in words is "nineteen billion, six hundred thirty-five million, four hundred thirty thousand, one hundred thirty-six".