6694378641275 has 24 divisors (see below), whose sum is σ = 9328247224800. Its totient is φ = 4728604573440.

The previous prime is 6694378641263. The next prime is 6694378641281. The reversal of 6694378641275 is 5721468734966.

It is not a de Polignac number, because 6694378641275 - 2¹⁴ = 6694378624891 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 447777050 + ... + 447791999.

It is an arithmetic number, because the mean of its divisors is an integer number (388676967700).

Almost surely, 2^{6694378641275} is an apocalyptic number.

6694378641275 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6694378641275 is a deficient number, since it is larger than the sum of its proper divisors (2633868583525).

6694378641275 is a wasteful number, since it uses less digits than its factorization.

6694378641275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895569095 (or 895569090 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 68.

The spelling of 6694378641275 in words is "six trillion, six hundred ninety-four billion, three hundred seventy-eight million, six hundred forty-one thousand, two hundred seventy-five".