6987637841 has 8 divisors (see below), whose sum is σ = 7240065600. Its totient is φ = 6735975120.

The previous prime is 6987637817. The next prime is 6987637859. The reversal of 6987637841 is 1487367896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6987637841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6987636841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172631 + ... + 209228.

It is an arithmetic number, because the mean of its divisors is an integer number (905008200).

Almost surely, 2^6987637841 is an apocalyptic number.

It is an amenable number.

6987637841 is a deficient number, since it is larger than the sum of its proper divisors (252427759).

6987637841 is a wasteful number, since it uses less digits than its factorization.

6987637841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382519.

The product of its digits is 12192768, while the sum is 59.

The square root of 6987637841 is about 83592.0919764543. The cubic root of 6987637841 is about 1911.8044259126.

The spelling of 6987637841 in words is "six billion, nine hundred eighty-seven million, six hundred thirty-seven thousand, eight hundred forty-one".