19606488896 has 56 divisors (see below), whose sum is σ = 40273605000. Its totient is φ = 9459236864.

The previous prime is 19606488859. The next prime is 19606488907. The reversal of 19606488896 is 69888460691.

It can be written as a sum of positive squares in 4 ways, for example, as 1305810496 + 18300678400 = 36136^2 + 135280^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4840280 + ... + 4844328.

Almost surely, 2^19606488896 is an apocalyptic number.

19606488896 is a gapful number since it is divisible by the number (16) 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 19606488896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20136802500).

19606488896 is an abundant number, since it is smaller than the sum of its proper divisors (20667116104).

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

19606488896 is a wasteful number, since it uses less digits than its factorization.

19606488896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6699 (or 6689 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 65.

The spelling of 19606488896 in words is "nineteen billion, six hundred six million, four hundred eighty-eight thousand, eight hundred ninety-six".