19486510848 has 720 divisors, whose sum is σ = 72119678400. Its totient is φ = 5106696192.

The previous prime is 19486510819. The next prime is 19486510867. The reversal of 19486510848 is 84801568491.

It is a happy number.

19486510848 is a `hidden beast` number, since 1 + 9 + 4 + 86 + 510 + 8 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 19486510794 and 19486510803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 130781878 + ... + 130782026.

It is an arithmetic number, because the mean of its divisors is an integer number (100166220).

Almost surely, 2^19486510848 is an apocalyptic number.

19486510848 is a gapful number since it is divisible by the number (18) 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 19486510848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36059839200).

19486510848 is an abundant number, since it is smaller than the sum of its proper divisors (52633167552).

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

19486510848 is a wasteful number, since it uses less digits than its factorization.

19486510848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 19486510848 in words is "nineteen billion, four hundred eighty-six million, five hundred ten thousand, eight hundred forty-eight".