40518188153 has 4 divisors (see below), whose sum is σ = 40699884288. Its totient is φ = 40336492020.

The previous prime is 40518188111. The next prime is 40518188189. The reversal of 40518188153 is 35188181504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40518188153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40518188453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90847733 + ... + 90848178.

It is an arithmetic number, because the mean of its divisors is an integer number (10174971072).

Almost surely, 2^40518188153 is an apocalyptic number.

It is an amenable number.

40518188153 is a deficient number, since it is larger than the sum of its proper divisors (181696135).

40518188153 is a wasteful number, since it uses less digits than its factorization.

40518188153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181696134.

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 40518188153 in words is "forty billion, five hundred eighteen million, one hundred eighty-eight thousand, one hundred fifty-three".