40027273065 has 40 divisors (see below), whose sum is σ = 77272033608. Its totient is φ = 19705731840.

The previous prime is 40027273009. The next prime is 40027273163. The reversal of 40027273065 is 56037272004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60466176 + 39966806889 = 7776^2 + 199917^2 .

It is not a de Polignac number, because 40027273065 - 2¹⁰ = 40027272041 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3795996 + ... + 3806525.

Almost surely, 2^40027273065 is an apocalyptic number.

40027273065 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40027273065 is a deficient number, since it is larger than the sum of its proper divisors (37244760543).

40027273065 is a wasteful number, since it uses less digits than its factorization.

40027273065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602551 (or 7602542 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 40027273065 in words is "forty billion, twenty-seven million, two hundred seventy-three thousand, sixty-five".