40289069537 has 4 divisors (see below), whose sum is σ = 40348581396. Its totient is φ = 40229557680.

The previous prime is 40289069521. The next prime is 40289069543. The reversal of 40289069537 is 73596098204.

It is a happy number.

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 40080440401 + 208629136 = 200201^2 + 14444^2 .

It is a cyclic number.

It is not a de Polignac number, because 40289069537 - 2⁴ = 40289069521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40289069237) 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, 29754914 + ... + 29756267.

It is an arithmetic number, because the mean of its divisors is an integer number (10087145349).

Almost surely, 2^40289069537 is an apocalyptic number.

It is an amenable number.

40289069537 is a deficient number, since it is larger than the sum of its proper divisors (59511859).

40289069537 is an equidigital number, since it uses as much as digits as its factorization.

40289069537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59511858.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 40289069537 in words is "forty billion, two hundred eighty-nine million, sixty-nine thousand, five hundred thirty-seven".