919696969691 has 4 divisors (see below), whose sum is σ = 928802880384. Its totient is φ = 910591059000.

The previous prime is 919696969663. The next prime is 919696969717. The reversal of 919696969691 is 196969696919.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 919696969691 - 2¹⁰ = 919696968667 is a prime.

It is a super-3 number, since 3×919696969691³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (919696969391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4552955195 + ... + 4552955396.

It is an arithmetic number, because the mean of its divisors is an integer number (232200720096).

Almost surely, 2^919696969691 is an apocalyptic number.

919696969691 is a deficient number, since it is larger than the sum of its proper divisors (9105910693).

919696969691 is a wasteful number, since it uses less digits than its factorization.

919696969691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9105910692.

The product of its digits is 688747536, while the sum is 80.

The spelling of 919696969691 in words is "nine hundred nineteen billion, six hundred ninety-six million, nine hundred sixty-nine thousand, six hundred ninety-one".