2045636523 has 24 divisors (see below), whose sum is σ = 3395808000. Its totient is φ = 1162398384.

The previous prime is 2045636521. The next prime is 2045636531. The reversal of 2045636523 is 3256365402.

It is not a de Polignac number, because 2045636523 - 2¹ = 2045636521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2045636521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79423 + ... + 101976.

It is an arithmetic number, because the mean of its divisors is an integer number (141492000).

Almost surely, 2^2045636523 is an apocalyptic number.

2045636523 is a deficient number, since it is larger than the sum of its proper divisors (1350171477).

2045636523 is a wasteful number, since it uses less digits than its factorization.

2045636523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181591 (or 181588 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 2045636523 is about 45228.7134793817. The cubic root of 2045636523 is about 1269.4321397463.

The spelling of 2045636523 in words is "two billion, forty-five million, six hundred thirty-six thousand, five hundred twenty-three".