2881745745 has 16 divisors (see below), whose sum is σ = 4612554240. Its totient is φ = 1536344064.

The previous prime is 2881745731. The next prime is 2881745753. The reversal of 2881745745 is 5475471882.

It is a happy number.

It is not a de Polignac number, because 2881745745 - 2¹⁸ = 2881483601 is a prime.

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, 5457 + ... + 76113.

It is an arithmetic number, because the mean of its divisors is an integer number (288284640).

Almost surely, 2^2881745745 is an apocalyptic number.

It is an amenable number.

2881745745 is a deficient number, since it is larger than the sum of its proper divisors (1730808495).

2881745745 is a wasteful number, since it uses less digits than its factorization.

2881745745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73384.

The product of its digits is 2508800, while the sum is 51.

The square root of 2881745745 is about 53681.8940146489. The cubic root of 2881745745 is about 1423.0447372815.

The spelling of 2881745745 in words is "two billion, eight hundred eighty-one million, seven hundred forty-five thousand, seven hundred forty-five".