19846068480 has 432 divisors, whose sum is σ = 82611285120. Its totient is φ = 4297162752.

The previous prime is 19846068479. The next prime is 19846068493. The reversal of 19846068480 is 8486064891.

It is a super-2 number, since 2×19846068480² (a number of 21 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 1525684 + ... + 1538636.

Almost surely, 2^19846068480 is an apocalyptic number.

19846068480 is a gapful number since it is divisible by the number (10) 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 19846068480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41305642560).

19846068480 is an abundant number, since it is smaller than the sum of its proper divisors (62765216640).

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

19846068480 is a wasteful number, since it uses less digits than its factorization.

19846068480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13006 (or 12989 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 19846068480 in words is "nineteen billion, eight hundred forty-six million, sixty-eight thousand, four hundred eighty".