4645641313 has 4 divisors (see below), whose sum is σ = 4697839620. Its totient is φ = 4593443008.

The previous prime is 4645641271. The next prime is 4645641337. The reversal of 4645641313 is 3131465464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1715367889 + 2930273424 = 41417^2 + 54132^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645641313 - 2¹³ = 4645633121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4645641613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26099020 + ... + 26099197.

It is an arithmetic number, because the mean of its divisors is an integer number (1174459905).

Almost surely, 2^4645641313 is an apocalyptic number.

It is an amenable number.

4645641313 is a deficient number, since it is larger than the sum of its proper divisors (52198307).

4645641313 is an equidigital number, since it uses as much as digits as its factorization.

4645641313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52198306.

The product of its digits is 103680, while the sum is 37.

The square root of 4645641313 is about 68158.9415484131. The cubic root of 4645641313 is about 1668.5858578460.

The spelling of 4645641313 in words is "four billion, six hundred forty-five million, six hundred forty-one thousand, three hundred thirteen".