2605002012 has 24 divisors (see below), whose sum is σ = 6753709200. Its totient is φ = 868333968.

The previous prime is 2605001989. The next prime is 2605002041. The reversal of 2605002012 is 2102005062.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 12060087 + ... + 12060302.

It is an arithmetic number, because the mean of its divisors is an integer number (281404550).

Almost surely, 2^2605002012 is an apocalyptic number.

It is an amenable number.

2605002012 is an abundant number, since it is smaller than the sum of its proper divisors (4148707188).

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

2605002012 is a wasteful number, since it uses less digits than its factorization.

2605002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24120402 (or 24120394 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2605002012 is about 51039.2203310356. The cubic root of 2605002012 is about 1375.9501112873.

Adding to 2605002012 its reverse (2102005062), we get a palindrome (4707007074).

The spelling of 2605002012 in words is "two billion, six hundred five million, two thousand, twelve".