2729189187 has 32 divisors (see below), whose sum is σ = 4123526400. Its totient is φ = 1783689984.

The previous prime is 2729189179. The next prime is 2729189209. The reversal of 2729189187 is 7819819272.

It is not a de Polignac number, because 2729189187 - 2³ = 2729189179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2729189167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275364 + ... + 285102.

It is an arithmetic number, because the mean of its divisors is an integer number (128860200).

Almost surely, 2^2729189187 is an apocalyptic number.

2729189187 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2729189187 is a deficient number, since it is larger than the sum of its proper divisors (1394337213).

2729189187 is a wasteful number, since it uses less digits than its factorization.

2729189187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9952 (or 9946 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 2729189187 is about 52241.6422693621. The cubic root of 2729189187 is about 1397.4766087677.

The spelling of 2729189187 in words is "two billion, seven hundred twenty-nine million, one hundred eighty-nine thousand, one hundred eighty-seven".