4949591617 has 4 divisors (see below), whose sum is σ = 5120267220. Its totient is φ = 4778916016.

The previous prime is 4949591593. The next prime is 4949591623. The reversal of 4949591617 is 7161959494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7161959494 = 2 ⋅3580979747.

It can be written as a sum of positive squares in 2 ways, for example, as 3558003201 + 1391588416 = 59649^2 + 37304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4949591617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4949591687) 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, 85337758 + ... + 85337815.

It is an arithmetic number, because the mean of its divisors is an integer number (1280066805).

Almost surely, 2^4949591617 is an apocalyptic number.

It is an amenable number.

4949591617 is a deficient number, since it is larger than the sum of its proper divisors (170675603).

4949591617 is a wasteful number, since it uses less digits than its factorization.

4949591617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170675602.

The product of its digits is 2449440, while the sum is 55.

The square root of 4949591617 is about 70353.3340858839. The cubic root of 4949591617 is about 1704.2100515863.

The spelling of 4949591617 in words is "four billion, nine hundred forty-nine million, five hundred ninety-one thousand, six hundred seventeen".