1968476469 has 4 divisors (see below), whose sum is σ = 2624635296. Its totient is φ = 1312317644.

The previous prime is 1968476441. The next prime is 1968476537. The reversal of 1968476469 is 9646748691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9646748691 = 3 ⋅3215582897.

It is a cyclic number.

It is not a de Polignac number, because 1968476469 - 2¹³ = 1968468277 is a prime.

It is a super-2 number, since 2×1968476469² = 7749799218013415922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968476429) 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, 328079409 + ... + 328079414.

It is an arithmetic number, because the mean of its divisors is an integer number (656158824).

Almost surely, 2^1968476469 is an apocalyptic number.

It is an amenable number.

1968476469 is a deficient number, since it is larger than the sum of its proper divisors (656158827).

1968476469 is an equidigital number, since it uses as much as digits as its factorization.

1968476469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656158826.

The product of its digits is 15676416, while the sum is 60.

The square root of 1968476469 is about 44367.5159209979. The cubic root of 1968476469 is about 1253.2664369301.

The spelling of 1968476469 in words is "one billion, nine hundred sixty-eight million, four hundred seventy-six thousand, four hundred sixty-nine".