2645012744 has 64 divisors (see below), whose sum is σ = 5641574400. Its totient is φ = 1151539200.

The previous prime is 2645012737. The next prime is 2645012759. The reversal of 2645012744 is 4472105462.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320024 + ... + 328184.

It is an arithmetic number, because the mean of its divisors is an integer number (88149600).

Almost surely, 2^2645012744 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 2645012744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2820787200).

2645012744 is an abundant number, since it is smaller than the sum of its proper divisors (2996561656).

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

2645012744 is a wasteful number, since it uses less digits than its factorization.

2645012744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334 (or 8330 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 2645012744 is about 51429.6873799559. The cubic root of 2645012744 is about 1382.9588450209.

The spelling of 2645012744 in words is "two billion, six hundred forty-five million, twelve thousand, seven hundred forty-four".