2973888565 has 16 divisors (see below), whose sum is σ = 3673515888. Its totient is φ = 2310137856.

The previous prime is 2973888563. The next prime is 2973888587. The reversal of 2973888565 is 5658883792.

It can be written as a sum of positive squares in 8 ways, for example, as 377680356 + 2596208209 = 19434^2 + 50953^2 .

It is a cyclic number.

It is not a de Polignac number, because 2973888565 - 2¹ = 2973888563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2973888563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32142 + ... + 83551.

It is an arithmetic number, because the mean of its divisors is an integer number (229594743).

Almost surely, 2^2973888565 is an apocalyptic number.

It is an amenable number.

2973888565 is a deficient number, since it is larger than the sum of its proper divisors (699627323).

2973888565 is a wasteful number, since it uses less digits than its factorization.

2973888565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115848.

The product of its digits is 29030400, while the sum is 61.

The square root of 2973888565 is about 54533.3711134751. The cubic root of 2973888565 is about 1438.0530151009.

The spelling of 2973888565 in words is "two billion, nine hundred seventy-three million, eight hundred eighty-eight thousand, five hundred sixty-five".