2807806645 has 16 divisors (see below), whose sum is σ = 3853179648. Its totient is φ = 1924116480.

The previous prime is 2807806613. The next prime is 2807806657. The reversal of 2807806645 is 5466087082.

It is not a de Polignac number, because 2807806645 - 2⁵ = 2807806613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2807806595 and 2807806604.

It is a congruent 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, 31285 + ... + 81205.

It is an arithmetic number, because the mean of its divisors is an integer number (240823728).

Almost surely, 2^2807806645 is an apocalyptic number.

It is an amenable number.

2807806645 is a deficient number, since it is larger than the sum of its proper divisors (1045373003).

2807806645 is a wasteful number, since it uses less digits than its factorization.

2807806645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51540.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 2807806645 is about 52988.7407380096. The cubic root of 2807806645 is about 1410.7684299576.

The spelling of 2807806645 in words is "two billion, eight hundred seven million, eight hundred six thousand, six hundred forty-five".