40021050045 has 16 divisors (see below), whose sum is σ = 67403874240. Its totient is φ = 20221161984.

The previous prime is 40021050029. The next prime is 40021050049. The reversal of 40021050045 is 54005012004.

It is not a de Polignac number, because 40021050045 - 2⁴ = 40021050029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021050049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 70212084 + ... + 70212653.

It is an arithmetic number, because the mean of its divisors is an integer number (4212742140).

Almost surely, 2^40021050045 is an apocalyptic number.

It is an amenable number.

40021050045 is a deficient number, since it is larger than the sum of its proper divisors (27382824195).

40021050045 is a wasteful number, since it uses less digits than its factorization.

40021050045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140424764.

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 40021050045 its reverse (54005012004), we get a palindrome (94026062049).

The spelling of 40021050045 in words is "forty billion, twenty-one million, fifty thousand, forty-five".