19834305636 has 12 divisors (see below), whose sum is σ = 46280046512. Its totient is φ = 6611435208.

The previous prime is 19834305629. The next prime is 19834305653. The reversal of 19834305636 is 63650343891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×19834305636² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826429390 + ... + 826429413.

Almost surely, 2^19834305636 is an apocalyptic number.

It is an amenable number.

19834305636 is an abundant number, since it is smaller than the sum of its proper divisors (26445740876).

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

19834305636 is a wasteful number, since it uses less digits than its factorization.

19834305636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652858810 (or 1652858808 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 19834305636 in words is "nineteen billion, eight hundred thirty-four million, three hundred five thousand, six hundred thirty-six".