1836019585945 has 16 divisors (see below), whose sum is σ = 2281650282000. Its totient is φ = 1416640196608.

The previous prime is 1836019585943. The next prime is 1836019585963. The reversal of 1836019585945 is 5495859106381.

It can be written as a sum of positive squares in 8 ways, for example, as 318018172761 + 1518001413184 = 563931^2 + 1232072^2 .

It is not a de Polignac number, because 1836019585945 - 2¹ = 1836019585943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1836019585943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6680260 + ... + 6949669.

It is an arithmetic number, because the mean of its divisors is an integer number (142603142625).

Almost surely, 2^{1836019585945} is an apocalyptic number.

It is an amenable number.

1836019585945 is a deficient number, since it is larger than the sum of its proper divisors (445630696055).

1836019585945 is a wasteful number, since it uses less digits than its factorization.

1836019585945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630892.

The product of its (nonzero) digits is 46656000, while the sum is 64.

The spelling of 1836019585945 in words is "one trillion, eight hundred thirty-six billion, nineteen million, five hundred eighty-five thousand, nine hundred forty-five".