40743850669 has 4 divisors (see below), whose sum is σ = 40950672444. Its totient is φ = 40537028896.

The previous prime is 40743850663. The next prime is 40743850709. The reversal of 40743850669 is 96605834704.

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 40260422500 + 483428169 = 200650^2 + 21987^2 .

It is a cyclic number.

It is not a de Polignac number, because 40743850669 - 2³¹ = 38596367021 is a prime.

It is a super-2 number, since 2×40743850669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40743850663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103410592 + ... + 103410985.

It is an arithmetic number, because the mean of its divisors is an integer number (10237668111).

Almost surely, 2^40743850669 is an apocalyptic number.

It is an amenable number.

40743850669 is a deficient number, since it is larger than the sum of its proper divisors (206821775).

40743850669 is a wasteful number, since it uses less digits than its factorization.

40743850669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206821774.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 40743850669 in words is "forty billion, seven hundred forty-three million, eight hundred fifty thousand, six hundred sixty-nine".