1138513460863 has 4 divisors (see below), whose sum is σ = 1175239701568. Its totient is φ = 1101787220160.

The previous prime is 1138513460857. The next prime is 1138513460891. The reversal of 1138513460863 is 3680643158311.

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 1138513460863 - 2⁵ = 1138513460831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138513400863) 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, 18363120306 + ... + 18363120367.

It is an arithmetic number, because the mean of its divisors is an integer number (293809925392).

Almost surely, 2^{1138513460863} is an apocalyptic number.

1138513460863 is a deficient number, since it is larger than the sum of its proper divisors (36726240705).

1138513460863 is an equidigital number, since it uses as much as digits as its factorization.

1138513460863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36726240704.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 1138513460863 in words is "one trillion, one hundred thirty-eight billion, five hundred thirteen million, four hundred sixty thousand, eight hundred sixty-three".