19968476552 has 8 divisors (see below), whose sum is σ = 37440893550. Its totient is φ = 9984238272.

The previous prime is 19968476543. The next prime is 19968476599. The reversal of 19968476552 is 25567486991.

It can be written as a sum of positive squares in only one way, i.e., 18326119876 + 1642356676 = 135374^2 + 40526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248029777 + ... + 1248029792.

Almost surely, 2^19968476552 is an apocalyptic number.

It is an amenable number.

19968476552 is a deficient number, since it is larger than the sum of its proper divisors (17472416998).

19968476552 is a wasteful number, since it uses less digits than its factorization.

19968476552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496059575 (or 2496059571 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 62.

The spelling of 19968476552 in words is "nineteen billion, nine hundred sixty-eight million, four hundred seventy-six thousand, five hundred fifty-two".