869256392747 has 8 divisors (see below), whose sum is σ = 879865819056. Its totient is φ = 858692995072.

The previous prime is 869256392731. The next prime is 869256392833. The reversal of 869256392747 is 747293652968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 869256392747 - 2⁴ = 869256392731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869256392647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11469158 + ... + 11544699.

It is an arithmetic number, because the mean of its divisors is an integer number (109983227382).

Almost surely, 2^869256392747 is an apocalyptic number.

869256392747 is a deficient number, since it is larger than the sum of its proper divisors (10609426309).

869256392747 is a wasteful number, since it uses less digits than its factorization.

869256392747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23014317.

The product of its digits is 274337280, while the sum is 68.

The spelling of 869256392747 in words is "eight hundred sixty-nine billion, two hundred fifty-six million, three hundred ninety-two thousand, seven hundred forty-seven".