19453405002 has 16 divisors (see below), whose sum is σ = 38915523360. Its totient is φ = 6483016112.

The previous prime is 19453404989. The next prime is 19453405003. The reversal of 19453405002 is 20050435491.

It is not an unprimeable number, because it can be changed into a prime (19453405003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333852 + ... + 387767.

It is an arithmetic number, because the mean of its divisors is an integer number (2432220210).

Almost surely, 2^19453405002 is an apocalyptic number.

19453405002 is an abundant number, since it is smaller than the sum of its proper divisors (19462118358).

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

19453405002 is a wasteful number, since it uses less digits than its factorization.

19453405002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726117.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 19453405002 in words is "nineteen billion, four hundred fifty-three million, four hundred five thousand, two".