2045386554237 has 36 divisors (see below), whose sum is σ = 3287659317852. Its totient is φ = 1218096144000.

The previous prime is 2045386554151. The next prime is 2045386554247. The reversal of 2045386554237 is 7324556835402.

2045386554237 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 3 + 8 + 65 + 542 + 37 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 309498618276 + 1735887935961 = 556326^2 + 1317531^2 .

It is not a de Polignac number, because 2045386554237 - 2²⁸ = 2045118118781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045386554247) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8983264 + ... + 9208137.

Almost surely, 2^{2045386554237} is an apocalyptic number.

It is an amenable number.

2045386554237 is a deficient number, since it is larger than the sum of its proper divisors (1242272763615).

2045386554237 is a wasteful number, since it uses less digits than its factorization.

2045386554237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191482 (or 18191448 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 54.

The spelling of 2045386554237 in words is "two trillion, forty-five billion, three hundred eighty-six million, five hundred fifty-four thousand, two hundred thirty-seven".