6794561890647 has 12 divisors (see below), whose sum is σ = 9814413763440. Its totient is φ = 4529686424928.

The previous prime is 6794561890639. The next prime is 6794561890667. The reversal of 6794561890647 is 7460981654976.

It is a happy number.

6794561890647 is a `hidden beast` number, since 6 + 79 + 456 + 18 + 90 + 6 + 4 + 7 = 666.

It is not a de Polignac number, because 6794561890647 - 2³ = 6794561890639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6794561890667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343363 + ... + 3702299.

It is an arithmetic number, because the mean of its divisors is an integer number (817867813620).

Almost surely, 2^{6794561890647} is an apocalyptic number.

6794561890647 is a deficient number, since it is larger than the sum of its proper divisors (3019851872793).

6794561890647 is a wasteful number, since it uses less digits than its factorization.

6794561890647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583702 (or 3583699 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 72.

The spelling of 6794561890647 in words is "six trillion, seven hundred ninety-four billion, five hundred sixty-one million, eight hundred ninety thousand, six hundred forty-seven".