19647606052 has 6 divisors (see below), whose sum is σ = 34383310598. Its totient is φ = 9823803024.

The previous prime is 19647606049. The next prime is 19647606059. The reversal of 19647606052 is 25060674691.

It can be written as a sum of positive squares in only one way, i.e., 10448110656 + 9199495396 = 102216^2 + 95914^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19647605993 and 19647606011.

It is not an unprimeable number, because it can be changed into a prime (19647606059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2455950753 + ... + 2455950760.

Almost surely, 2^19647606052 is an apocalyptic number.

It is an amenable number.

19647606052 is a deficient number, since it is larger than the sum of its proper divisors (14735704546).

19647606052 is a wasteful number, since it uses less digits than its factorization.

19647606052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911901517 (or 4911901515 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 19647606052 in words is "nineteen billion, six hundred forty-seven million, six hundred six thousand, fifty-two".