6997809718040 has 16 divisors (see below), whose sum is σ = 15745071865680. Its totient is φ = 2799123887200.

The previous prime is 6997809718021. The next prime is 6997809718093. The reversal of 6997809718040 is 408179087996.

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 3 ways as a sum of consecutive naturals, for example, 87472621436 + ... + 87472621515.

It is an arithmetic number, because the mean of its divisors is an integer number (984066991605).

Almost surely, 2^{6997809718040} is an apocalyptic number.

It is an amenable number.

6997809718040 is an abundant number, since it is smaller than the sum of its proper divisors (8747262147640).

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

6997809718040 is a wasteful number, since it uses less digits than its factorization.

6997809718040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174945242962 (or 174945242958 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 68.

The spelling of 6997809718040 in words is "six trillion, nine hundred ninety-seven billion, eight hundred nine million, seven hundred eighteen thousand, forty".