2645785463 has 6 divisors (see below), whose sum is σ = 2810575176. Its totient is φ = 2490150752.

The previous prime is 2645785433. The next prime is 2645785477. The reversal of 2645785463 is 3645875462.

It is a happy number.

It is not a de Polignac number, because 2645785463 - 2¹⁴ = 2645769079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645785433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4577195 + ... + 4577772.

It is an arithmetic number, because the mean of its divisors is an integer number (468429196).

Almost surely, 2^2645785463 is an apocalyptic number.

2645785463 is a deficient number, since it is larger than the sum of its proper divisors (164789713).

2645785463 is an equidigital number, since it uses as much as digits as its factorization.

2645785463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155001 (or 9154984 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 50.

The square root of 2645785463 is about 51437.1992141874. The cubic root of 2645785463 is about 1383.0935053082.

The spelling of 2645785463 in words is "two billion, six hundred forty-five million, seven hundred eighty-five thousand, four hundred sixty-three".