5171426720768 has 396 divisors, whose sum is σ = 13443198987960. Its totient is φ = 1980554526720.

The previous prime is 5171426720711. The next prime is 5171426720771. The reversal of 5171426720768 is 8670276241715.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 358199246 + ... + 358213682.

Almost surely, 2^{5171426720768} 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 5171426720768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6721599493980).

5171426720768 is an abundant number, since it is smaller than the sum of its proper divisors (8271772267192).

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

5171426720768 is a wasteful number, since it uses less digits than its factorization.

5171426720768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14552 (or 14516 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 5171426720768 in words is "five trillion, one hundred seventy-one billion, four hundred twenty-six million, seven hundred twenty thousand, seven hundred sixty-eight".