8729136019 has 8 divisors (see below), whose sum is σ = 9131388192. Its totient is φ = 8328777600.

The previous prime is 8729136011. The next prime is 8729136029. The reversal of 8729136019 is 9106319278.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8729136019 - 2³ = 8729136011 is a prime.

It is a super-2 number, since 2×8729136019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8729136019.

It is not an unprimeable number, because it can be changed into a prime (8729136011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464004 + ... + 482449.

It is an arithmetic number, because the mean of its divisors is an integer number (1141423524).

Almost surely, 2^8729136019 is an apocalyptic number.

8729136019 is a deficient number, since it is larger than the sum of its proper divisors (402252173).

8729136019 is a wasteful number, since it uses less digits than its factorization.

8729136019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946877.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 8729136019 is about 93429.8454403088. The cubic root of 8729136019 is about 2059.0035098576.

The spelling of 8729136019 in words is "eight billion, seven hundred twenty-nine million, one hundred thirty-six thousand, nineteen".