40447498065 has 32 divisors (see below), whose sum is σ = 69895115136. Its totient is φ = 19855196160.

The previous prime is 40447498043. The next prime is 40447498087. The reversal of 40447498065 is 56089474404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40447498043) and next prime (40447498087).

It is not a de Polignac number, because 40447498065 - 2¹¹ = 40447496017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40447497999 and 40447498017.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231216 + ... + 366545.

It is an arithmetic number, because the mean of its divisors is an integer number (2184222348).

Almost surely, 2^40447498065 is an apocalyptic number.

It is an amenable number.

40447498065 is a deficient number, since it is larger than the sum of its proper divisors (29447617071).

40447498065 is a wasteful number, since it uses less digits than its factorization.

40447498065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598129.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 40447498065 in words is "forty billion, four hundred forty-seven million, four hundred ninety-eight thousand, sixty-five".