2686971745 has 16 divisors (see below), whose sum is σ = 3304192320. Its totient is φ = 2096506944.

The previous prime is 2686971733. The next prime is 2686971761. The reversal of 2686971745 is 5471796862.

2686971745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2686971745 - 2²³ = 2678583137 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, 143622 + ... + 161248.

It is an arithmetic number, because the mean of its divisors is an integer number (206512020).

Almost surely, 2^2686971745 is an apocalyptic number.

It is an amenable number.

2686971745 is a deficient number, since it is larger than the sum of its proper divisors (617220575).

2686971745 is a wasteful number, since it uses less digits than its factorization.

2686971745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384.

The product of its digits is 5080320, while the sum is 55.

The square root of 2686971745 is about 51836.0081892887. The cubic root of 2686971745 is about 1390.2333416038.

The spelling of 2686971745 in words is "two billion, six hundred eighty-six million, nine hundred seventy-one thousand, seven hundred forty-five".