1392389082045 has 24 divisors (see below), whose sum is σ = 2599126287576. Its totient is φ = 685483855488.

The previous prime is 1392389082013. The next prime is 1392389082131. The reversal of 1392389082045 is 5402809832931.

It can be written as a sum of positive squares in 4 ways, for example, as 20440706841 + 1371948375204 = 142971^2 + 1171302^2 .

It is not a de Polignac number, because 1392389082045 - 2⁵ = 1392389082013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1392389081982 and 1392389082000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1190075554 + ... + 1190076723.

It is an arithmetic number, because the mean of its divisors is an integer number (108296928649).

Almost surely, 2^{1392389082045} is an apocalyptic number.

1392389082045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1392389082045 is a deficient number, since it is larger than the sum of its proper divisors (1206737205531).

1392389082045 is a wasteful number, since it uses less digits than its factorization.

1392389082045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380152301 (or 2380152298 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 1392389082045 in words is "one trillion, three hundred ninety-two billion, three hundred eighty-nine million, eighty-two thousand, forty-five".