6985580717875 has 16 divisors (see below), whose sum is σ = 8719256433888. Its totient is φ = 5587662204000.

The previous prime is 6985580717839. The next prime is 6985580717879. The reversal of 6985580717875 is 5787170855896.

It is a de Polignac number, because none of the positive numbers 2^k-6985580717875 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6985580717879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3136992 + ... + 4879741.

It is an arithmetic number, because the mean of its divisors is an integer number (544953527118).

Almost surely, 2^{6985580717875} is an apocalyptic number.

6985580717875 is a deficient number, since it is larger than the sum of its proper divisors (1733675716013).

6985580717875 is an equidigital number, since it uses as much as digits as its factorization.

6985580717875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023719 (or 8023709 counting only the distinct ones).

The product of its (nonzero) digits is 1185408000, while the sum is 76.

The spelling of 6985580717875 in words is "six trillion, nine hundred eighty-five billion, five hundred eighty million, seven hundred seventeen thousand, eight hundred seventy-five".