6863855092 has 6 divisors (see below), whose sum is σ = 12011746418. Its totient is φ = 3431927544.

The previous prime is 6863855087. The next prime is 6863855107. The reversal of 6863855092 is 2905583686.

It can be written as a sum of positive squares in only one way, i.e., 5127132816 + 1736722276 = 71604^2 + 41674^2 .

It is a super-2 number, since 2×6863855092² = 94225013447948656928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 857981883 + ... + 857981890.

Almost surely, 2^6863855092 is an apocalyptic number.

It is an amenable number.

6863855092 is a deficient number, since it is larger than the sum of its proper divisors (5147891326).

6863855092 is a wasteful number, since it uses less digits than its factorization.

6863855092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715963777 (or 1715963775 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The square root of 6863855092 is about 82848.3861761954. The cubic root of 6863855092 is about 1900.4481945432.

The spelling of 6863855092 in words is "six billion, eight hundred sixty-three million, eight hundred fifty-five thousand, ninety-two".