6845669707842 has 72 divisors (see below), whose sum is σ = 17261079264000. Its totient is φ = 1955089726128.

The previous prime is 6845669707837. The next prime is 6845669707843. The reversal of 6845669707842 is 2487079665486.

6845669707842 is a `hidden beast` number, since 6 + 8 + 456 + 6 + 97 + 0 + 7 + 84 + 2 = 666.

It is a super-4 number, since 4×6845669707842⁴ (a number of 52 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (6845669707843) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 498259 + ... + 3733577.

It is an arithmetic number, because the mean of its divisors is an integer number (239737212000).

Almost surely, 2^{6845669707842} is an apocalyptic number.

6845669707842 is an abundant number, since it is smaller than the sum of its proper divisors (10415409556158).

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

6845669707842 is a wasteful number, since it uses less digits than its factorization.

6845669707842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237740 (or 3237730 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 72.

The spelling of 6845669707842 in words is "six trillion, eight hundred forty-five billion, six hundred sixty-nine million, seven hundred seven thousand, eight hundred forty-two".