6987471144678 has 48 divisors (see below), whose sum is σ = 15493391998656. Its totient is φ = 2274727840560.

The previous prime is 6987471144623. The next prime is 6987471144757. The reversal of 6987471144678 is 8764411747896.

It is a happy number.

6987471144678 is a `hidden beast` number, since 6 + 9 + 8 + 7 + 47 + 114 + 467 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6240801 + ... + 7274787.

It is an arithmetic number, because the mean of its divisors is an integer number (322778999972).

Almost surely, 2^{6987471144678} is an apocalyptic number.

6987471144678 is an abundant number, since it is smaller than the sum of its proper divisors (8505920853978).

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

6987471144678 is a wasteful number, since it uses less digits than its factorization.

6987471144678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042769 (or 1042766 counting only the distinct ones).

The product of its digits is 455196672, while the sum is 72.

The spelling of 6987471144678 in words is "six trillion, nine hundred eighty-seven billion, four hundred seventy-one million, one hundred forty-four thousand, six hundred seventy-eight".