7018839549 has 12 divisors (see below), whose sum is σ = 10465366912. Its totient is φ = 4528283400.

The previous prime is 7018839491. The next prime is 7018839557. The reversal of 7018839549 is 9459388107.

7018839549 is a `hidden beast` number, since 7 + 0 + 18 + 83 + 9 + 549 = 666.

It is not a de Polignac number, because 7018839549 - 2¹⁶ = 7018774013 is a prime.

It is a super-2 number, since 2×7018839549² = 98528217229213046802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7018839495 and 7018839504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7018839049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12578287 + ... + 12578844.

Almost surely, 2^7018839549 is an apocalyptic number.

It is an amenable number.

7018839549 is a deficient number, since it is larger than the sum of its proper divisors (3446527363).

7018839549 is a wasteful number, since it uses less digits than its factorization.

7018839549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25157168 (or 25157165 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 7018839549 is about 83778.5148412169. The cubic root of 7018839549 is about 1914.6457769564.

The spelling of 7018839549 in words is "seven billion, eighteen million, eight hundred thirty-nine thousand, five hundred forty-nine".