19489062684 has 384 divisors, whose sum is σ = 61072220160. Its totient is φ = 4692639744.

The previous prime is 19489062683. The next prime is 19489062689. The reversal of 19489062684 is 48626098491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19489062683) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 142255864 + ... + 142256000.

It is an arithmetic number, because the mean of its divisors is an integer number (159042240).

Almost surely, 2^19489062684 is an apocalyptic number.

19489062684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19489062684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30536110080).

19489062684 is an abundant number, since it is smaller than the sum of its proper divisors (41583157476).

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

19489062684 is a wasteful number, since it uses less digits than its factorization.

19489062684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 19489062684 in words is "nineteen billion, four hundred eighty-nine million, sixty-two thousand, six hundred eighty-four".