19673503552 has 28 divisors (see below), whose sum is σ = 39096854496. Its totient is φ = 9822327680.

The previous prime is 19673503543. The next prime is 19673503559. The reversal of 19673503552 is 25530537691.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19673503559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181324 + ... + 268747.

It is an arithmetic number, because the mean of its divisors is an integer number (1396316232).

Almost surely, 2^19673503552 is an apocalyptic number.

It is an amenable number.

19673503552 is a deficient number, since it is larger than the sum of its proper divisors (19423350944).

19673503552 is an equidigital number, since it uses as much as digits as its factorization.

19673503552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450766 (or 450756 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 46.

The spelling of 19673503552 in words is "nineteen billion, six hundred seventy-three million, five hundred three thousand, five hundred fifty-two".