2789129136 has 40 divisors (see below), whose sum is σ = 7208110080. Its totient is φ = 929340736.

The previous prime is 2789129129. The next prime is 2789129141. The reversal of 2789129136 is 6319219872.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128101 + ... + 148283.

It is an arithmetic number, because the mean of its divisors is an integer number (180202752).

Almost surely, 2^2789129136 is an apocalyptic number.

It is an amenable number.

2789129136 is an abundant number, since it is smaller than the sum of its proper divisors (4418980944).

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

2789129136 is a wasteful number, since it uses less digits than its factorization.

2789129136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23073 (or 23067 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 2789129136 is about 52812.2063163432. The cubic root of 2789129136 is about 1407.6333277071.

The spelling of 2789129136 in words is "two billion, seven hundred eighty-nine million, one hundred twenty-nine thousand, one hundred thirty-six".