19269709134 has 64 divisors (see below), whose sum is σ = 44564567040. Its totient is φ = 5501744640.

The previous prime is 19269709103. The next prime is 19269709159. The reversal of 19269709134 is 43190796291.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 31 ways as a sum of consecutive naturals, for example, 8194 + ... + 196485.

It is an arithmetic number, because the mean of its divisors is an integer number (696321360).

Almost surely, 2^19269709134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19269709134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22282283520).

19269709134 is an abundant number, since it is smaller than the sum of its proper divisors (25294857906).

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

19269709134 is a wasteful number, since it uses less digits than its factorization.

19269709134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204785.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 19269709134 in words is "nineteen billion, two hundred sixty-nine million, seven hundred nine thousand, one hundred thirty-four".