6863853951135 has 64 divisors (see below), whose sum is σ = 12597310033920. Its totient is φ = 3542275152000.

The previous prime is 6863853951127. The next prime is 6863853951169. The reversal of 6863853951135 is 5311593583686.

6863853951135 is a `hidden beast` number, since 6 + 8 + 6 + 3 + 85 + 3 + 9 + 511 + 35 = 666.

It is not a de Polignac number, because 6863853951135 - 2³ = 6863853951127 is a prime.

It is a super-2 number, since 2×6863853951135² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43994365 + ... + 44150105.

It is an arithmetic number, because the mean of its divisors is an integer number (196832969280).

Almost surely, 2^{6863853951135} is an apocalyptic number.

6863853951135 is a deficient number, since it is larger than the sum of its proper divisors (5733456082785).

6863853951135 is a wasteful number, since it uses less digits than its factorization.

6863853951135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166317 (or 166311 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 63.

The spelling of 6863853951135 in words is "six trillion, eight hundred sixty-three billion, eight hundred fifty-three million, nine hundred fifty-one thousand, one hundred thirty-five".