6988013477287 has 16 divisors (see below), whose sum is σ = 7416721428480. Its totient is φ = 6561276833152.

The previous prime is 6988013477281. The next prime is 6988013477311. The reversal of 6988013477287 is 7827743108896.

6988013477287 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6988013477287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988013477281) 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, 21584514 + ... + 21905872.

It is an arithmetic number, because the mean of its divisors is an integer number (463545089280).

Almost surely, 2^{6988013477287} is an apocalyptic number.

6988013477287 is a deficient number, since it is larger than the sum of its proper divisors (428707951193).

6988013477287 is a wasteful number, since it uses less digits than its factorization.

6988013477287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324422.

The product of its (nonzero) digits is 227598336, while the sum is 70.

The spelling of 6988013477287 in words is "six trillion, nine hundred eighty-eight billion, thirteen million, four hundred seventy-seven thousand, two hundred eighty-seven".