6750378667494 has 256 divisors, whose sum is σ = 19164606289920. Its totient is φ = 1710035712000.

The previous prime is 6750378667477. The next prime is 6750378667583. The reversal of 6750378667494 is 4947668730576.

6750378667494 is a `hidden beast` number, since 6 + 7 + 5 + 0 + 3 + 78 + 6 + 67 + 494 = 666.

It is a super-2 number, since 2×6750378667494² (a number of 26 digits) contains 22 as substring.

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 127 ways as a sum of consecutive naturals, for example, 1002577752 + ... + 1002584484.

It is an arithmetic number, because the mean of its divisors is an integer number (74861743320).

Almost surely, 2^{6750378667494} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6750378667494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9582303144960).

6750378667494 is an abundant number, since it is smaller than the sum of its proper divisors (12414227622426).

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

6750378667494 is a wasteful number, since it uses less digits than its factorization.

6750378667494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12684 (or 12678 counting only the distinct ones).

The product of its (nonzero) digits is 1280240640, while the sum is 72.

The spelling of 6750378667494 in words is "six trillion, seven hundred fifty billion, three hundred seventy-eight million, six hundred sixty-seven thousand, four hundred ninety-four".