2207780465 has 16 divisors (see below), whose sum is σ = 3015847296. Its totient is φ = 1535846400.

The previous prime is 2207780459. The next prime is 2207780467. The reversal of 2207780465 is 5640877022.

It is not a de Polignac number, because 2207780465 - 2¹² = 2207776369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2207780467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871376 + ... + 873905.

It is an arithmetic number, because the mean of its divisors is an integer number (188490456).

Almost surely, 2^2207780465 is an apocalyptic number.

It is an amenable number.

2207780465 is a deficient number, since it is larger than the sum of its proper divisors (808066831).

2207780465 is a wasteful number, since it uses less digits than its factorization.

2207780465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745320.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 2207780465 is about 46987.0244322834. The cubic root of 2207780465 is about 1302.1228560186.

The spelling of 2207780465 in words is "two billion, two hundred seven million, seven hundred eighty thousand, four hundred sixty-five".