4048415917 has 18 divisors (see below), whose sum is σ = 5073654474. Its totient is φ = 3201871680.

The previous prime is 4048415893. The next prime is 4048415951. The reversal of 4048415917 is 7195148404.

It can be written as a sum of positive squares in 3 ways, for example, as 1141696521 + 2906719396 = 33789^2 + 53914^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4048415917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4048415617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1604617 + ... + 1607137.

It is an arithmetic number, because the mean of its divisors is an integer number (281869693).

Almost surely, 2^4048415917 is an apocalyptic number.

It is an amenable number.

4048415917 is a deficient number, since it is larger than the sum of its proper divisors (1025238557).

4048415917 is an frugal number, since it uses more digits than its factorization.

4048415917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 4048415917 is about 63627.1633581130. The cubic root of 4048415917 is about 1593.7800069972.

The spelling of 4048415917 in words is "four billion, forty-eight million, four hundred fifteen thousand, nine hundred seventeen".