19701012480 has 192 divisors, whose sum is σ = 65770548480. Its totient is φ = 5025005568.

The previous prime is 19701012469. The next prime is 19701012491. The reversal of 19701012480 is 8421010791.

It is an interprime number because it is at equal distance from previous prime (19701012469) and next prime (19701012491).

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692619 + ... + 720501.

It is an arithmetic number, because the mean of its divisors is an integer number (342554940).

Almost surely, 2^19701012480 is an apocalyptic number.

19701012480 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 19701012480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32885274240).

19701012480 is an abundant number, since it is smaller than the sum of its proper divisors (46069536000).

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

19701012480 is a wasteful number, since it uses less digits than its factorization.

19701012480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27936 (or 27916 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 19701012480 in words is "nineteen billion, seven hundred one million, twelve thousand, four hundred eighty".