2765131236 has 96 divisors (see below), whose sum is σ = 8269793280. Its totient is φ = 782631072.

The previous prime is 2765131223. The next prime is 2765131267. The reversal of 2765131236 is 6321315672.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2765131236.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63801 + ... + 97983.

It is an arithmetic number, because the mean of its divisors is an integer number (86143680).

Almost surely, 2^2765131236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2765131236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4134896640).

2765131236 is an abundant number, since it is smaller than the sum of its proper divisors (5504662044).

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

2765131236 is a wasteful number, since it uses less digits than its factorization.

2765131236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34310 (or 34302 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 2765131236 is about 52584.5151731952. The cubic root of 2765131236 is about 1403.5845618690.

The spelling of 2765131236 in words is "two billion, seven hundred sixty-five million, one hundred thirty-one thousand, two hundred thirty-six".