7665969957907 has 2 divisors, whose sum is σ = 7665969957908. Its totient is φ = 7665969957906.

The previous prime is 7665969957889. The next prime is 7665969957923. The reversal of 7665969957907 is 7097599695667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7665969957907 - 2¹⁵ = 7665969925139 is a prime.

It is not a weakly prime, because it can be changed into another prime (7665969957967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832984978953 + 3832984978954.

It is an arithmetic number, because the mean of its divisors is an integer number (3832984978954).

Almost surely, 2^{7665969957907} is an apocalyptic number.

7665969957907 is a deficient number, since it is larger than the sum of its proper divisors (1).

7665969957907 is an equidigital number, since it uses as much as digits as its factorization.

7665969957907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12152284200, while the sum is 85.

The spelling of 7665969957907 in words is "seven trillion, six hundred sixty-five billion, nine hundred sixty-nine million, nine hundred fifty-seven thousand, nine hundred seven".