2658820465 has 16 divisors (see below), whose sum is σ = 3656176128. Its totient is φ = 1818294336.

The previous prime is 2658820453. The next prime is 2658820469. The reversal of 2658820465 is 5640288562.

It is a cyclic number.

It is not a de Polignac number, because 2658820465 - 2⁷ = 2658820337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2658820469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88777 + ... + 114886.

It is an arithmetic number, because the mean of its divisors is an integer number (228511008).

Almost surely, 2^2658820465 is an apocalyptic number.

It is an amenable number.

2658820465 is a deficient number, since it is larger than the sum of its proper divisors (997355663).

2658820465 is a wasteful number, since it uses less digits than its factorization.

2658820465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204048.

The product of its (nonzero) digits is 921600, while the sum is 46.

The square root of 2658820465 is about 51563.7514636009. The cubic root of 2658820465 is about 1385.3611495038.

The spelling of 2658820465 in words is "two billion, six hundred fifty-eight million, eight hundred twenty thousand, four hundred sixty-five".