868045049 has 16 divisors (see below), whose sum is σ = 901957056. Its totient is φ = 834753600.

The previous prime is 868045033. The next prime is 868045063. The reversal of 868045049 is 940540868.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 868045049 - 2⁴ = 868045033 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868045069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519934 + ... + 1520504.

It is an arithmetic number, because the mean of its divisors is an integer number (56372316).

Almost surely, 2^868045049 is an apocalyptic number.

It is an amenable number.

868045049 is a deficient number, since it is larger than the sum of its proper divisors (33912007).

868045049 is a wasteful number, since it uses less digits than its factorization.

868045049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 868045049 is about 29462.6042467396. The cubic root of 868045049 is about 953.9246868044.

The spelling of 868045049 in words is "eight hundred sixty-eight million, forty-five thousand, forty-nine".