19280338989 has 16 divisors (see below), whose sum is σ = 26684651520. Its totient is φ = 12369426480.

The previous prime is 19280338969. The next prime is 19280339027. The reversal of 19280338989 is 98983308291.

It is not a de Polignac number, because 19280338989 - 2¹² = 19280334893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19280338969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562447 + ... + 595740.

It is an arithmetic number, because the mean of its divisors is an integer number (1667790720).

Almost surely, 2^19280338989 is an apocalyptic number.

It is an amenable number.

19280338989 is a deficient number, since it is larger than the sum of its proper divisors (7404312531).

19280338989 is a wasteful number, since it uses less digits than its factorization.

19280338989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158400.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 19280338989 in words is "nineteen billion, two hundred eighty million, three hundred thirty-eight thousand, nine hundred eighty-nine".