1138618705583 has 4 divisors (see below), whose sum is σ = 1165098210408. Its totient is φ = 1112139200760.

The previous prime is 1138618705547. The next prime is 1138618705597. The reversal of 1138618705583 is 3855078168311.

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 1138618705583 - 2⁶ = 1138618705519 is a prime.

It is a super-5 number, since 5×1138618705583⁵ (a number of 61 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138618705513) 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, 13239752348 + ... + 13239752433.

It is an arithmetic number, because the mean of its divisors is an integer number (291274552602).

Almost surely, 2^{1138618705583} is an apocalyptic number.

1138618705583 is a deficient number, since it is larger than the sum of its proper divisors (26479504825).

1138618705583 is an equidigital number, since it uses as much as digits as its factorization.

1138618705583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26479504824.

The product of its (nonzero) digits is 4838400, while the sum is 56.

The spelling of 1138618705583 in words is "one trillion, one hundred thirty-eight billion, six hundred eighteen million, seven hundred five thousand, five hundred eighty-three".