7668117731 has 2 divisors, whose sum is σ = 7668117732. Its totient is φ = 7668117730.

The previous prime is 7668117643. The next prime is 7668117761. The reversal of 7668117731 is 1377118667.

It is a strong prime.

It is an emirp because it is prime and its reverse (1377118667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7668117731 - 2¹⁰ = 7668116707 is a prime.

It is a super-2 number, since 2×7668117731² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7668117761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834058865 + 3834058866.

It is an arithmetic number, because the mean of its divisors is an integer number (3834058866).

Almost surely, 2^7668117731 is an apocalyptic number.

7668117731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668117731 is an equidigital number, since it uses as much as digits as its factorization.

7668117731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 47.

The square root of 7668117731 is about 87567.7893463116. The cubic root of 7668117731 is about 1971.9516274802.

The spelling of 7668117731 in words is "seven billion, six hundred sixty-eight million, one hundred seventeen thousand, seven hundred thirty-one".