40889498805 has 12 divisors (see below), whose sum is σ = 70875131340. Its totient is φ = 21807732672.

The previous prime is 40889498789. The next prime is 40889498813. The reversal of 40889498805 is 50889498804.

It can be written as a sum of positive squares in 2 ways, for example, as 26888456529 + 14001042276 = 163977^2 + 118326^2 .

It is not a de Polignac number, because 40889498805 - 2⁴ = 40889498789 is a prime.

It is a super-2 number, since 2×40889498805² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 454327720 + ... + 454327809.

It is an arithmetic number, because the mean of its divisors is an integer number (5906260945).

Almost surely, 2^40889498805 is an apocalyptic number.

40889498805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40889498805 is a deficient number, since it is larger than the sum of its proper divisors (29985632535).

40889498805 is a wasteful number, since it uses less digits than its factorization.

40889498805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908655540 (or 908655537 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

Subtracting 40889498805 from its reverse (50889498804), we obtain a palindrome (9999999999).

The spelling of 40889498805 in words is "forty billion, eight hundred eighty-nine million, four hundred ninety-eight thousand, eight hundred five".