6988005611865 has 48 divisors (see below), whose sum is σ = 12421076443776. Its totient is φ = 3632195001600.

The previous prime is 6988005611833. The next prime is 6988005611879. The reversal of 6988005611865 is 5681165008896.

6988005611865 is a `hidden beast` number, since 6 + 9 + 8 + 8 + 0 + 0 + 5 + 611 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 6988005611865 - 2⁵ = 6988005611833 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252541 + ... + 3746970.

It is an arithmetic number, because the mean of its divisors is an integer number (258772425912).

Almost surely, 2^{6988005611865} is an apocalyptic number.

It is an amenable number.

6988005611865 is a deficient number, since it is larger than the sum of its proper divisors (5433070831911).

6988005611865 is a wasteful number, since it uses less digits than its factorization.

6988005611865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000510 (or 4000507 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 63.

The spelling of 6988005611865 in words is "six trillion, nine hundred eighty-eight billion, five million, six hundred eleven thousand, eight hundred sixty-five".