7667742331 has 2 divisors, whose sum is σ = 7667742332. Its totient is φ = 7667742330.

The previous prime is 7667742307. The next prime is 7667742347. The reversal of 7667742331 is 1332477667.

It is a strong prime.

It is an emirp because it is prime and its reverse (1332477667) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7667742331 is a prime.

It is a super-2 number, since 2×7667742331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7667742031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833871165 + 3833871166.

It is an arithmetic number, because the mean of its divisors is an integer number (3833871166).

Almost surely, 2^7667742331 is an apocalyptic number.

7667742331 is a deficient number, since it is larger than the sum of its proper divisors (1).

7667742331 is an equidigital number, since it uses as much as digits as its factorization.

7667742331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 46.

The square root of 7667742331 is about 87565.6458378513. The cubic root of 7667742331 is about 1971.9194473657.

The spelling of 7667742331 in words is "seven billion, six hundred sixty-seven million, seven hundred forty-two thousand, three hundred thirty-one".