1968632969 has 8 divisors (see below), whose sum is σ = 1985507328. Its totient is φ = 1951780320.

The previous prime is 1968632947. The next prime is 1968632983. The reversal of 1968632969 is 9692368691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1968632969 is a prime.

It is a super-2 number, since 2×1968632969² = 7751031533267509922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1968632269) 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 in 7 ways as a sum of consecutive naturals, for example, 214064 + ... + 223070.

It is an arithmetic number, because the mean of its divisors is an integer number (248188416).

Almost surely, 2^1968632969 is an apocalyptic number.

It is an amenable number.

1968632969 is a deficient number, since it is larger than the sum of its proper divisors (16874359).

1968632969 is a wasteful number, since it uses less digits than its factorization.

1968632969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855.

The product of its digits is 7558272, while the sum is 59.

The square root of 1968632969 is about 44369.2795636801. The cubic root of 1968632969 is about 1253.2996489095.

The spelling of 1968632969 in words is "one billion, nine hundred sixty-eight million, six hundred thirty-two thousand, nine hundred sixty-nine".