1013868859 has 4 divisors (see below), whose sum is σ = 1013949360. Its totient is φ = 1013788360.

The previous prime is 1013868851. The next prime is 1013868887. The reversal of 1013868859 is 9588683101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1013868859 - 2³ = 1013868851 is a prime.

It is a Smith number, since the sum of its digits (49) 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 (1013868851) 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, 16807 + ... + 48064.

It is an arithmetic number, because the mean of its divisors is an integer number (253487340).

Almost surely, 2^1013868859 is an apocalyptic number.

1013868859 is a deficient number, since it is larger than the sum of its proper divisors (80501).

1013868859 is an equidigital number, since it uses as much as digits as its factorization.

1013868859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80500.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 1013868859 is about 31841.3074323276. The cubic root of 1013868859 is about 1004.6017444656.

The spelling of 1013868859 in words is "one billion, thirteen million, eight hundred sixty-eight thousand, eight hundred fifty-nine".