19629434147 has 16 divisors (see below), whose sum is σ = 20736672000. Its totient is φ = 18529733664.

The previous prime is 19629434141. The next prime is 19629434159. The reversal of 19629434147 is 74143492691.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19629434147 - 2²⁶ = 19562325283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19629434095 and 19629434104.

It is not an unprimeable number, because it can be changed into a prime (19629434141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12168713 + ... + 12170325.

It is an arithmetic number, because the mean of its divisors is an integer number (1296042000).

Almost surely, 2^19629434147 is an apocalyptic number.

19629434147 is a deficient number, since it is larger than the sum of its proper divisors (1107237853).

19629434147 is a wasteful number, since it uses less digits than its factorization.

19629434147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530.

The product of its digits is 1306368, while the sum is 50.

The spelling of 19629434147 in words is "nineteen billion, six hundred twenty-nine million, four hundred thirty-four thousand, one hundred forty-seven".