40811453181 has 56 divisors (see below), whose sum is σ = 63559611360. Its totient is φ = 26161380000.

The previous prime is 40811453149. The next prime is 40811453191. The reversal of 40811453181 is 18135411804.

40811453181 is a `hidden beast` number, since 4 + 0 + 8 + 114 + 531 + 8 + 1 = 666.

40811453181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40811453181 - 2⁵ = 40811453149 is a prime.

It is a super-2 number, since 2×40811453181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40811453191) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5302546 + ... + 5310236.

It is an arithmetic number, because the mean of its divisors is an integer number (1134993060).

Almost surely, 2^40811453181 is an apocalyptic number.

It is an amenable number.

40811453181 is a deficient number, since it is larger than the sum of its proper divisors (22748158179).

40811453181 is an equidigital number, since it uses as much as digits as its factorization.

40811453181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989 (or 7974 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

Adding to 40811453181 its reverse (18135411804), we get a palindrome (58946864985).

The spelling of 40811453181 in words is "forty billion, eight hundred eleven million, four hundred fifty-three thousand, one hundred eighty-one".