4518048731 has 4 divisors (see below), whose sum is σ = 5163484272. Its totient is φ = 3872613192.

The previous prime is 4518048679. The next prime is 4518048763. The reversal of 4518048731 is 1378408154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1378408154 = 2 ⋅689204077.

It is not a de Polignac number, because 4518048731 - 2¹⁰ = 4518047707 is a prime.

It is a super-2 number, since 2×4518048731² = 40825528671381420722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4518048781) 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, 322717760 + ... + 322717773.

It is an arithmetic number, because the mean of its divisors is an integer number (1290871068).

Almost surely, 2^4518048731 is an apocalyptic number.

4518048731 is a deficient number, since it is larger than the sum of its proper divisors (645435541).

4518048731 is an equidigital number, since it uses as much as digits as its factorization.

4518048731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645435540.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 4518048731 is about 67216.4320014087. The cubic root of 4518048731 is about 1653.1679243674.

The spelling of 4518048731 in words is "four billion, five hundred eighteen million, forty-eight thousand, seven hundred thirty-one".