6865398023159 has 32 divisors (see below), whose sum is σ = 7900013721600. Its totient is φ = 5913714597120.

The previous prime is 6865398023147. The next prime is 6865398023213. The reversal of 6865398023159 is 9513208935686.

It is a cyclic number.

It is not a de Polignac number, because 6865398023159 - 2³⁶ = 6796678546423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6865398023095 and 6865398023104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6865398023959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5187794 + ... + 6375264.

It is an arithmetic number, because the mean of its divisors is an integer number (246875428800).

Almost surely, 2^{6865398023159} is an apocalyptic number.

6865398023159 is a deficient number, since it is larger than the sum of its proper divisors (1034615698441).

6865398023159 is a wasteful number, since it uses less digits than its factorization.

6865398023159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187855.

The product of its (nonzero) digits is 83980800, while the sum is 65.

The spelling of 6865398023159 in words is "six trillion, eight hundred sixty-five billion, three hundred ninety-eight million, twenty-three thousand, one hundred fifty-nine".