7691990991967 has 16 divisors (see below), whose sum is σ = 8268368129280. Its totient is φ = 7129442694528.

The previous prime is 7691990991961. The next prime is 7691990992013.

7691990991967 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7691990991967 - 2¹¹ = 7691990989919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7691990991961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3059884 + ... + 4974622.

It is an arithmetic number, because the mean of its divisors is an integer number (516773008080).

Almost surely, 2^{7691990991967} is an apocalyptic number.

7691990991967 is a deficient number, since it is larger than the sum of its proper divisors (576377137313).

7691990991967 is a wasteful number, since it uses less digits than its factorization.

7691990991967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918350.

The product of its (nonzero) digits is 937461924, while the sum is 82.

The spelling of 7691990991967 in words is "seven trillion, six hundred ninety-one billion, nine hundred ninety million, nine hundred ninety-one thousand, nine hundred sixty-seven".