41956557889 has 9 divisors (see below), whose sum is σ = 44573468457. Its totient is φ = 39485247744.

The previous prime is 41956557883. The next prime is 41956557893. The reversal of 41956557889 is 98875565914.

The square root of 41956557889 is 204833.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9265025025 + 32691532864 = 96255^2 + 180808^2 .

It is not a de Polignac number, because 41956557889 - 2⁷ = 41956557761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41956557883) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3476137 + ... + 3488185.

Almost surely, 2^41956557889 is an apocalyptic number.

41956557889 is the 204833-rd square number.

41956557889 is the 102417-th centered octagonal number.

It is an amenable number.

41956557889 is a deficient number, since it is larger than the sum of its proper divisors (2616910568).

41956557889 is an frugal number, since it uses more digits than its factorization.

41956557889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24132 (or 12066 counting only the distinct ones).

The product of its digits is 108864000, while the sum is 67.

The spelling of 41956557889 in words is "forty-one billion, nine hundred fifty-six million, five hundred fifty-seven thousand, eight hundred eighty-nine".