7761427713 has 24 divisors (see below), whose sum is σ = 12180196392. Its totient is φ = 4733987328.

The previous prime is 7761427699. The next prime is 7761427721. The reversal of 7761427713 is 3177241677.

It is a happy number.

7761427713 is a `hidden beast` number, since 7 + 7 + 614 + 27 + 7 + 1 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 169442289 + 7591985424 = 13017^2 + 87132^2 .

It is not a de Polignac number, because 7761427713 - 2¹⁸ = 7761165569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7761427733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280306 + ... + 306747.

It is an arithmetic number, because the mean of its divisors is an integer number (507508183).

Almost surely, 2^7761427713 is an apocalyptic number.

It is an amenable number.

7761427713 is a deficient number, since it is larger than the sum of its proper divisors (4418768679).

7761427713 is a wasteful number, since it uses less digits than its factorization.

7761427713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587185 (or 587182 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 7761427713 is about 88098.9654479552. The cubic root of 7761427713 is about 1979.9180077771.

The spelling of 7761427713 in words is "seven billion, seven hundred sixty-one million, four hundred twenty-seven thousand, seven hundred thirteen".