2945687744 has 56 divisors (see below), whose sum is σ = 5919386688. Its totient is φ = 1454286080.

The previous prime is 2945687737. The next prime is 2945687753. The reversal of 2945687744 is 4477865492.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2945687744.

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, 3033179 + ... + 3034149.

Almost surely, 2^2945687744 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 2945687744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2959693344).

2945687744 is an abundant number, since it is smaller than the sum of its proper divisors (2973698944).

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

2945687744 is a wasteful number, since it uses less digits than its factorization.

2945687744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1523 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 56.

The square root of 2945687744 is about 54274.1904039111. The cubic root of 2945687744 is about 1433.4929759569.

The spelling of 2945687744 in words is "two billion, nine hundred forty-five million, six hundred eighty-seven thousand, seven hundred forty-four".