40635637153 has 4 divisors (see below), whose sum is σ = 40908359700. Its totient is φ = 40362914608.

The previous prime is 40635637151. The next prime is 40635637181. The reversal of 40635637153 is 35173653604.

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 27038211489 + 13597425664 = 164433^2 + 116608^2 .

It is a cyclic number.

It is not a de Polignac number, because 40635637153 - 2¹ = 40635637151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40635637151) 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 3 ways as a sum of consecutive naturals, for example, 136361050 + ... + 136361347.

It is an arithmetic number, because the mean of its divisors is an integer number (10227089925).

Almost surely, 2^40635637153 is an apocalyptic number.

It is an amenable number.

40635637153 is a deficient number, since it is larger than the sum of its proper divisors (272722547).

40635637153 is a wasteful number, since it uses less digits than its factorization.

40635637153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272722546.

The product of its (nonzero) digits is 680400, while the sum is 43.

The spelling of 40635637153 in words is "forty billion, six hundred thirty-five million, six hundred thirty-seven thousand, one hundred fifty-three".