4618645149 has 4 divisors (see below), whose sum is σ = 6158193536. Its totient is φ = 3079096764.

The previous prime is 4618645079. The next prime is 4618645169. The reversal of 4618645149 is 9415468164.

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 not a de Polignac number, because 4618645149 - 2²⁰ = 4617596573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4618645098 and 4618645107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4618645169) 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, 769774189 + ... + 769774194.

It is an arithmetic number, because the mean of its divisors is an integer number (1539548384).

Almost surely, 2^4618645149 is an apocalyptic number.

It is an amenable number.

4618645149 is a deficient number, since it is larger than the sum of its proper divisors (1539548387).

4618645149 is a wasteful number, since it uses less digits than its factorization.

4618645149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539548386.

The product of its digits is 829440, while the sum is 48.

The square root of 4618645149 is about 67960.6146896863. The cubic root of 4618645149 is about 1665.3474851226.

The spelling of 4618645149 in words is "four billion, six hundred eighteen million, six hundred forty-five thousand, one hundred forty-nine".