4865685149 has 4 divisors (see below), whose sum is σ = 5239968636. Its totient is φ = 4491401664.

The previous prime is 4865685137. The next prime is 4865685157. The reversal of 4865685149 is 9415865684.

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 1323649924 + 3542035225 = 36382^2 + 59515^2 .

It is a cyclic number.

It is not a de Polignac number, because 4865685149 - 2⁸ = 4865684893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4865685094 and 4865685103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4865685169) 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, 187141724 + ... + 187141749.

It is an arithmetic number, because the mean of its divisors is an integer number (1309992159).

Almost surely, 2^4865685149 is an apocalyptic number.

It is an amenable number.

4865685149 is a deficient number, since it is larger than the sum of its proper divisors (374283487).

4865685149 is a wasteful number, since it uses less digits than its factorization.

4865685149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374283486.

The product of its digits is 8294400, while the sum is 56.

The square root of 4865685149 is about 69754.4632908891. The cubic root of 4865685149 is about 1694.5250798014.

The spelling of 4865685149 in words is "four billion, eight hundred sixty-five million, six hundred eighty-five thousand, one hundred forty-nine".