1138618705647 has 8 divisors (see below), whose sum is σ = 1559189579056. Its totient is φ = 738563484672.

The previous prime is 1138618705607. The next prime is 1138618705649. The reversal of 1138618705647 is 7465078168311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1138618705647 - 2⁷ = 1138618705519 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 (1138618705649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5128912978 + ... + 5128913199.

It is an arithmetic number, because the mean of its divisors is an integer number (194898697382).

Almost surely, 2^{1138618705647} is an apocalyptic number.

1138618705647 is a deficient number, since it is larger than the sum of its proper divisors (420570873409).

1138618705647 is a wasteful number, since it uses less digits than its factorization.

1138618705647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10257826217.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 1138618705647 in words is "one trillion, one hundred thirty-eight billion, six hundred eighteen million, seven hundred five thousand, six hundred forty-seven".