2807668145 has 8 divisors (see below), whose sum is σ = 3371685480. Its totient is φ = 2244478720.

The previous prime is 2807668139. The next prime is 2807668153. The reversal of 2807668145 is 5418667082.

It can be written as a sum of positive squares in 4 ways, for example, as 60964864 + 2746703281 = 7808^2 + 52409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2807668145 - 2⁶ = 2807668081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2807668145.

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, 199490 + ... + 213099.

It is an arithmetic number, because the mean of its divisors is an integer number (421460685).

Almost surely, 2^2807668145 is an apocalyptic number.

It is an amenable number.

2807668145 is a deficient number, since it is larger than the sum of its proper divisors (564017335).

2807668145 is a wasteful number, since it uses less digits than its factorization.

2807668145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413955.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 2807668145 is about 52987.4338404871. The cubic root of 2807668145 is about 1410.7452333651.

The spelling of 2807668145 in words is "two billion, eight hundred seven million, six hundred sixty-eight thousand, one hundred forty-five".