7671349018 has 4 divisors (see below), whose sum is σ = 11507023530. Its totient is φ = 3835674508.

The previous prime is 7671348983. The next prime is 7671349019. The reversal of 7671349018 is 8109431767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8109431767 = 643 ⋅12611869.

It can be written as a sum of positive squares in only one way, i.e., 5024966769 + 2646382249 = 70887^2 + 51443^2 .

It is not an unprimeable number, because it can be changed into a prime (7671349019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1917837253 + ... + 1917837256.

Almost surely, 2^7671349018 is an apocalyptic number.

7671349018 is a deficient number, since it is larger than the sum of its proper divisors (3835674512).

7671349018 is a wasteful number, since it uses less digits than its factorization.

7671349018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835674511.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 7671349018 is about 87586.2376061445. The cubic root of 7671349018 is about 1972.2285770986.

The spelling of 7671349018 in words is "seven billion, six hundred seventy-one million, three hundred forty-nine thousand, eighteen".