869399041051 has 4 divisors (see below), whose sum is σ = 871127469072. Its totient is φ = 867670613032.

The previous prime is 869399041013. The next prime is 869399041103. The reversal of 869399041051 is 150140993968.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 869399041051 - 2¹⁷ = 869398909979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 869399040983 and 869399041001.

It is not an unprimeable number, because it can be changed into a prime (869399341051) 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, 864213256 + ... + 864214261.

It is an arithmetic number, because the mean of its divisors is an integer number (217781867268).

Almost surely, 2^869399041051 is an apocalyptic number.

869399041051 is a deficient number, since it is larger than the sum of its proper divisors (1728428021).

869399041051 is a wasteful number, since it uses less digits than its factorization.

869399041051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728428020.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 869399041051 in words is "eight hundred sixty-nine billion, three hundred ninety-nine million, forty-one thousand, fifty-one".