5197478919768 has 96 divisors (see below), whose sum is σ = 14915978344800. Its totient is φ = 1629329716224.

The previous prime is 5197478919761. The next prime is 5197478919781. The reversal of 5197478919768 is 8679198747915.

5197478919768 is a `hidden beast` number, since 51 + 9 + 7 + 478 + 9 + 1 + 97 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5197478919761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34563 + ... + 3224306.

It is an arithmetic number, because the mean of its divisors is an integer number (155374774425).

Almost surely, 2^{5197478919768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5197478919768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7457989172400).

5197478919768 is an abundant number, since it is smaller than the sum of its proper divisors (9718499425032).

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

5197478919768 is a wasteful number, since it uses less digits than its factorization.

5197478919768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260201 (or 3260194 counting only the distinct ones).

The product of its digits is 1920360960, while the sum is 81.

The spelling of 5197478919768 in words is "five trillion, one hundred ninety-seven billion, four hundred seventy-eight million, nine hundred nineteen thousand, seven hundred sixty-eight".