4661808013 has 4 divisors (see below), whose sum is σ = 4662554400. Its totient is φ = 4661061628.

The previous prime is 4661808001. The next prime is 4661808043. The reversal of 4661808013 is 3108081664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4661808013 - 2⁵ = 4661807981 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 (4661808043) 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, 363745 + ... + 376342.

It is an arithmetic number, because the mean of its divisors is an integer number (1165638600).

Almost surely, 2^4661808013 is an apocalyptic number.

It is an amenable number.

4661808013 is a deficient number, since it is larger than the sum of its proper divisors (746387).

4661808013 is an equidigital number, since it uses as much as digits as its factorization.

4661808013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746386.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 4661808013 is about 68277.4341418891. The cubic root of 4661808013 is about 1670.5191607832.

Adding to 4661808013 its reverse (3108081664), we get a palindrome (7769889677).

The spelling of 4661808013 in words is "four billion, six hundred sixty-one million, eight hundred eight thousand, thirteen".