40959456181 has 24 divisors (see below), whose sum is σ = 48166849536. Its totient is φ = 34726527360.

The previous prime is 40959456163. The next prime is 40959456203. The reversal of 40959456181 is 18165495904.

It is not a de Polignac number, because 40959456181 - 2⁷ = 40959456053 is a prime.

It is a super-2 number, since 2×40959456181² (a number of 22 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 (40959456121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2087386 + ... + 2106916.

It is an arithmetic number, because the mean of its divisors is an integer number (2006952064).

Almost surely, 2^40959456181 is an apocalyptic number.

It is an amenable number.

40959456181 is a deficient number, since it is larger than the sum of its proper divisors (7207393355).

40959456181 is a wasteful number, since it uses less digits than its factorization.

40959456181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20009 (or 20002 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 40959456181 in words is "forty billion, nine hundred fifty-nine million, four hundred fifty-six thousand, one hundred eighty-one".