1385449184045 has 4 divisors (see below), whose sum is σ = 1662539020860. Its totient is φ = 1108359347232.

The previous prime is 1385449184029. The next prime is 1385449184083. The reversal of 1385449184045 is 5404819445831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 438013654276 + 947435529769 = 661826^2 + 973363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385449184045 - 2⁴ = 1385449184029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138544918400 + ... + 138544918409.

It is an arithmetic number, because the mean of its divisors is an integer number (415634755215).

Almost surely, 2^{1385449184045} is an apocalyptic number.

It is an amenable number.

1385449184045 is a deficient number, since it is larger than the sum of its proper divisors (277089836815).

1385449184045 is an equidigital number, since it uses as much as digits as its factorization.

1385449184045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277089836814.

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 1385449184045 in words is "one trillion, three hundred eighty-five billion, four hundred forty-nine million, one hundred eighty-four thousand, forty-five".