7664341511 has 2 divisors, whose sum is σ = 7664341512. Its totient is φ = 7664341510.

The previous prime is 7664341507. The next prime is 7664341561. The reversal of 7664341511 is 1151434667.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7664341511 - 2² = 7664341507 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7664341561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832170755 + 3832170756.

It is an arithmetic number, because the mean of its divisors is an integer number (3832170756).

Almost surely, 2^7664341511 is an apocalyptic number.

7664341511 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664341511 is an equidigital number, since it uses as much as digits as its factorization.

7664341511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 7664341511 is about 87546.2249957130. The cubic root of 7664341511 is about 1971.6278737189.

The spelling of 7664341511 in words is "seven billion, six hundred sixty-four million, three hundred forty-one thousand, five hundred eleven".