40200052045 has 4 divisors (see below), whose sum is σ = 48240062460. Its totient is φ = 32160041632.

The previous prime is 40200052019. The next prime is 40200052051. The reversal of 40200052045 is 54025000204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28640146756 + 11559905289 = 169234^2 + 107517^2 .

It is a cyclic number.

It is not a de Polignac number, because 40200052045 - 2⁷ = 40200051917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020005200 + ... + 4020005209.

It is an arithmetic number, because the mean of its divisors is an integer number (12060015615).

Almost surely, 2^40200052045 is an apocalyptic number.

It is an amenable number.

40200052045 is a deficient number, since it is larger than the sum of its proper divisors (8040010415).

40200052045 is an equidigital number, since it uses as much as digits as its factorization.

40200052045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040010414.

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 40200052045 its reverse (54025000204), we get a palindrome (94225052249).

The spelling of 40200052045 in words is "forty billion, two hundred million, fifty-two thousand, forty-five".