6866002102511 has 4 divisors (see below), whose sum is σ = 6866009181024. Its totient is φ = 6865995024000.

The previous prime is 6866002102409. The next prime is 6866002102513. The reversal of 6866002102511 is 1152012006686.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6866002102511 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 (6866002102513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799090 + ... + 4119311.

It is an arithmetic number, because the mean of its divisors is an integer number (1716502295256).

Almost surely, 2^{6866002102511} is an apocalyptic number.

6866002102511 is a deficient number, since it is larger than the sum of its proper divisors (7078513).

6866002102511 is a wasteful number, since it uses less digits than its factorization.

6866002102511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078512.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 6866002102511 in words is "six trillion, eight hundred sixty-six billion, two million, one hundred two thousand, five hundred eleven".