11139439445 has 8 divisors (see below), whose sum is σ = 13693359960. Its totient is φ = 8694196480.

The previous prime is 11139439439. The next prime is 11139439463. The reversal of 11139439445 is 54493493111.

It can be written as a sum of positive squares in 4 ways, for example, as 13830961 + 11125608484 = 3719^2 + 105478^2 .

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

It is not a de Polignac number, because 11139439445 - 2¹⁰ = 11139438421 is a prime.

It is a super-2 number, since 2×11139439445² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11139439396 and 11139439405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27169160 + ... + 27169569.

It is an arithmetic number, because the mean of its divisors is an integer number (1711669995).

Almost surely, 2^11139439445 is an apocalyptic number.

It is an amenable number.

11139439445 is a deficient number, since it is larger than the sum of its proper divisors (2553920515).

11139439445 is an equidigital number, since it uses as much as digits as its factorization.

11139439445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54338775.

The product of its digits is 233280, while the sum is 44.

The spelling of 11139439445 in words is "eleven billion, one hundred thirty-nine million, four hundred thirty-nine thousand, four hundred forty-five".