19628776134 has 48 divisors (see below), whose sum is σ = 46628524800. Its totient is φ = 5918212080.

The previous prime is 19628776133. The next prime is 19628776169. The reversal of 19628776134 is 43167782691.

19628776134 is a `hidden beast` number, since 1 + 9 + 628 + 7 + 7 + 6 + 1 + 3 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19628776133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209682 + ... + 288485.

It is an arithmetic number, because the mean of its divisors is an integer number (971427600).

Almost surely, 2^19628776134 is an apocalyptic number.

19628776134 is an abundant number, since it is smaller than the sum of its proper divisors (26999748666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19628776134 is a wasteful number, since it uses less digits than its factorization.

19628776134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498385 (or 498382 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 19628776134 in words is "nineteen billion, six hundred twenty-eight million, seven hundred seventy-six thousand, one hundred thirty-four".