2640467145 has 16 divisors (see below), whose sum is σ = 4447103040. Its totient is φ = 1334130624.

The previous prime is 2640467143. The next prime is 2640467153. The reversal of 2640467145 is 5417640462.

It is not a de Polignac number, because 2640467145 - 2¹ = 2640467143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2640467143) 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, 4632114 + ... + 4632683.

It is an arithmetic number, because the mean of its divisors is an integer number (277943940).

Almost surely, 2^2640467145 is an apocalyptic number.

It is an amenable number.

2640467145 is a deficient number, since it is larger than the sum of its proper divisors (1806635895).

2640467145 is a wasteful number, since it uses less digits than its factorization.

2640467145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264824.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 2640467145 is about 51385.4760121963. The cubic root of 2640467145 is about 1382.1661606303.

The spelling of 2640467145 in words is "two billion, six hundred forty million, four hundred sixty-seven thousand, one hundred forty-five".