1968417544 has 32 divisors (see below), whose sum is σ = 3806271000. Its totient is φ = 953735680.

The previous prime is 1968417511. The next prime is 1968417559. The reversal of 1968417544 is 4457148691.

It can be written as a sum of positive squares in 4 ways, for example, as 1285222500 + 683195044 = 35850^2 + 26138^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28734 + ... + 69010.

Almost surely, 2^1968417544 is an apocalyptic number.

It is an amenable number.

1968417544 is a deficient number, since it is larger than the sum of its proper divisors (1837853456).

1968417544 is a wasteful number, since it uses less digits than its factorization.

1968417544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40473 (or 40469 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 1968417544 is about 44366.8518603698. The cubic root of 1968417544 is about 1253.2539315801.

The spelling of 1968417544 in words is "one billion, nine hundred sixty-eight million, four hundred seventeen thousand, five hundred forty-four".