7771134489 has 32 divisors (see below), whose sum is σ = 10752000000. Its totient is φ = 4989501504.

The previous prime is 7771134443. The next prime is 7771134493. The reversal of 7771134489 is 9844311777.

It is not a de Polignac number, because 7771134489 - 2¹¹ = 7771132441 is a prime.

It is a super-2 number, since 2×7771134489² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7771134409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3886512 + ... + 3888510.

It is an arithmetic number, because the mean of its divisors is an integer number (336000000).

Almost surely, 2^7771134489 is an apocalyptic number.

7771134489 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7771134489 is a deficient number, since it is larger than the sum of its proper divisors (2980865511).

7771134489 is a wasteful number, since it uses less digits than its factorization.

7771134489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477.

The product of its digits is 1185408, while the sum is 51.

The square root of 7771134489 is about 88154.0384157187. The cubic root of 7771134489 is about 1980.7430541901.

The spelling of 7771134489 in words is "seven billion, seven hundred seventy-one million, one hundred thirty-four thousand, four hundred eighty-nine".