19425452780 has 12 divisors (see below), whose sum is σ = 40793450880. Its totient is φ = 7770181104.

The previous prime is 19425452729. The next prime is 19425452803. The reversal of 19425452780 is 8725452491.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485636300 + ... + 485636339.

It is an arithmetic number, because the mean of its divisors is an integer number (3399454240).

Almost surely, 2^19425452780 is an apocalyptic number.

19425452780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19425452780 is an abundant number, since it is smaller than the sum of its proper divisors (21367998100).

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

19425452780 is a wasteful number, since it uses less digits than its factorization.

19425452780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971272648 (or 971272646 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 19425452780 in words is "nineteen billion, four hundred twenty-five million, four hundred fifty-two thousand, seven hundred eighty".