6494183280768 has 128 divisors (see below), whose sum is σ = 18017141345280. Its totient is φ = 2068658279424.

The previous prime is 6494183280763. The next prime is 6494183280773. The reversal of 6494183280768 is 8670823814946.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6494183280763) and next prime (6494183280773).

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 6494183280699 and 6494183280708.

It is not an unprimeable number, because it can be changed into a prime (6494183280763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9042555 + ... + 9734277.

It is an arithmetic number, because the mean of its divisors is an integer number (140758916760).

Almost surely, 2^{6494183280768} 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 6494183280768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9008570672640).

6494183280768 is an abundant number, since it is smaller than the sum of its proper divisors (11522958064512).

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

6494183280768 is a wasteful number, since it uses less digits than its factorization.

6494183280768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692826 (or 692814 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 66.

The spelling of 6494183280768 in words is "six trillion, four hundred ninety-four billion, one hundred eighty-three million, two hundred eighty thousand, seven hundred sixty-eight".