6894786641445 has 48 divisors (see below), whose sum is σ = 12042897115392. Its totient is φ = 3648935571840.

The previous prime is 6894786641443. The next prime is 6894786641513. The reversal of 6894786641445 is 5441466874986.

6894786641445 is a `hidden beast` number, since 6 + 8 + 9 + 47 + 86 + 64 + 1 + 445 = 666.

It is not a de Polignac number, because 6894786641445 - 2¹ = 6894786641443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6894786641443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193237947 + ... + 193273623.

It is an arithmetic number, because the mean of its divisors is an integer number (250893689904).

Almost surely, 2^{6894786641445} is an apocalyptic number.

It is an amenable number.

6894786641445 is a deficient number, since it is larger than the sum of its proper divisors (5148110473947).

6894786641445 is a wasteful number, since it uses less digits than its factorization.

6894786641445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68602 (or 68599 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 72.

The spelling of 6894786641445 in words is "six trillion, eight hundred ninety-four billion, seven hundred eighty-six million, six hundred forty-one thousand, four hundred forty-five".