6428471763516 has 96 divisors (see below), whose sum is σ = 16420304689152. Its totient is φ = 1941251235840.

The previous prime is 6428471763503. The next prime is 6428471763547. The reversal of 6428471763516 is 6153671748246.

It is a super-2 number, since 2×6428471763516² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6428471763516.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89688405 + ... + 89760051.

It is an arithmetic number, because the mean of its divisors is an integer number (171044840512).

Almost surely, 2^{6428471763516} is an apocalyptic number.

6428471763516 is a gapful number since it is divisible by the number (66) 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 6428471763516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8210152344576).

6428471763516 is an abundant number, since it is smaller than the sum of its proper divisors (9991832925636).

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

6428471763516 is a wasteful number, since it uses less digits than its factorization.

6428471763516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74019 (or 74017 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 60.

The spelling of 6428471763516 in words is "six trillion, four hundred twenty-eight billion, four hundred seventy-one million, seven hundred sixty-three thousand, five hundred sixteen".