2136240453485 has 16 divisors (see below), whose sum is σ = 2567132698800. Its totient is φ = 1706563385856.

The previous prime is 2136240453409. The next prime is 2136240453497. The reversal of 2136240453485 is 5843540426312.

It can be written as a sum of positive squares in 8 ways, for example, as 139521672676 + 1996718780809 = 373526^2 + 1413053^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136240453485 - 2¹⁶ = 2136240387949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48762971 + ... + 48806759.

It is an arithmetic number, because the mean of its divisors is an integer number (160445793675).

Almost surely, 2^{2136240453485} is an apocalyptic number.

It is an amenable number.

2136240453485 is a deficient number, since it is larger than the sum of its proper divisors (430892245315).

2136240453485 is a wasteful number, since it uses less digits than its factorization.

2136240453485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57440.

The product of its (nonzero) digits is 2764800, while the sum is 47.

Adding to 2136240453485 its reverse (5843540426312), we get a palindrome (7979780879797).

The spelling of 2136240453485 in words is "two trillion, one hundred thirty-six billion, two hundred forty million, four hundred fifty-three thousand, four hundred eighty-five".