40243572550205 has 16 divisors (see below), whose sum is σ = 49470507629424. Its totient is φ = 31409389086720.

The previous prime is 40243572550201. The next prime is 40243572550211. The reversal of 40243572550205 is 50205527534204.

It can be written as a sum of positive squares in 8 ways, for example, as 18971303627236 + 21272268922969 = 4355606^2 + 4612187^2 .

It is not a de Polignac number, because 40243572550205 - 2² = 40243572550201 is a prime.

It is a super-2 number, since 2×40243572550205² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243572550201) 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, 30947897 + ... + 32222033.

It is an arithmetic number, because the mean of its divisors is an integer number (3091906726839).

Almost surely, 2^{40243572550205} is an apocalyptic number.

It is an amenable number.

40243572550205 is a deficient number, since it is larger than the sum of its proper divisors (9226935079219).

40243572550205 is a wasteful number, since it uses less digits than its factorization.

40243572550205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428256.

The product of its (nonzero) digits is 1680000, while the sum is 44.

The spelling of 40243572550205 in words is "forty trillion, two hundred forty-three billion, five hundred seventy-two million, five hundred fifty thousand, two hundred five".