40835239369 has 4 divisors (see below), whose sum is σ = 40926186900. Its totient is φ = 40744291840.

The previous prime is 40835239321. The next prime is 40835239373. The reversal of 40835239369 is 96393253804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11580557769 + 29254681600 = 107613^2 + 171040^2 .

It is a cyclic number.

It is not a de Polignac number, because 40835239369 - 2¹⁹ = 40834715081 is a prime.

It is a super-2 number, since 2×40835239369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40835209369) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 45473092 + ... + 45473989.

It is an arithmetic number, because the mean of its divisors is an integer number (10231546725).

Almost surely, 2^40835239369 is an apocalyptic number.

It is an amenable number.

40835239369 is a deficient number, since it is larger than the sum of its proper divisors (90947531).

40835239369 is an equidigital number, since it uses as much as digits as its factorization.

40835239369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90947530.

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 40835239369 in words is "forty billion, eight hundred thirty-five million, two hundred thirty-nine thousand, three hundred sixty-nine".