19539953032 has 16 divisors (see below), whose sum is σ = 36639172800. Its totient is φ = 9769506960.

The previous prime is 19539953003. The next prime is 19539953033. The reversal of 19539953032 is 23035993591.

It is not an unprimeable number, because it can be changed into a prime (19539953033) 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, 171069 + ... + 261427.

It is an arithmetic number, because the mean of its divisors is an integer number (2289948300).

Almost surely, 2^19539953032 is an apocalyptic number.

It is an amenable number.

19539953032 is a deficient number, since it is larger than the sum of its proper divisors (17099219768).

19539953032 is a wasteful number, since it uses less digits than its factorization.

19539953032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117396 (or 117392 counting only the distinct ones).

The product of its (nonzero) digits is 984150, while the sum is 49.

The spelling of 19539953032 in words is "nineteen billion, five hundred thirty-nine million, nine hundred fifty-three thousand, thirty-two".