19976152228 has 12 divisors (see below), whose sum is σ = 34959289932. Its totient is φ = 9987783680.

The previous prime is 19976152223. The next prime is 19976152271. The reversal of 19976152228 is 82225167991.

It can be written as a sum of positive squares in 2 ways, for example, as 16860503104 + 3115649124 = 129848^2 + 55818^2 .

It is not an unprimeable number, because it can be changed into a prime (19976152223) 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 3 ways as a sum of consecutive naturals, for example, 171588 + ... + 263428.

It is an arithmetic number, because the mean of its divisors is an integer number (2913274161).

Almost surely, 2^19976152228 is an apocalyptic number.

It is an amenable number.

19976152228 is a deficient number, since it is larger than the sum of its proper divisors (14983137704).

19976152228 is a wasteful number, since it uses less digits than its factorization.

19976152228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146222 (or 146220 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The spelling of 19976152228 in words is "nineteen billion, nine hundred seventy-six million, one hundred fifty-two thousand, two hundred twenty-eight".