868389000049 has 4 divisors (see below), whose sum is σ = 868992468480. Its totient is φ = 867785531620.

The previous prime is 868389000043. The next prime is 868389000053. The reversal of 868389000049 is 940000983868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868389000049 is a prime.

It is a super-2 number, since 2×868389000049² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868389000043) 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, 301732057 + ... + 301734934.

It is an arithmetic number, because the mean of its divisors is an integer number (217248117120).

Almost surely, 2^868389000049 is an apocalyptic number.

It is an amenable number.

868389000049 is a deficient number, since it is larger than the sum of its proper divisors (603468431).

868389000049 is a wasteful number, since it uses less digits than its factorization.

868389000049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603468430.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 868389000049 in words is "eight hundred sixty-eight billion, three hundred eighty-nine million, forty-nine", and thus it is an aban number.