40242733133849 has 4 divisors (see below), whose sum is σ = 40248627784464. Its totient is φ = 40236838483236.

The previous prime is 40242733133747. The next prime is 40242733133857. The reversal of 40242733133849 is 94833133724204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40242733133849 - 2⁴⁰ = 39143221506073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40242733133849.

It is not an unprimeable number, because it can be changed into a prime (40242733130849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947315067 + ... + 2947328720.

It is an arithmetic number, because the mean of its divisors is an integer number (10062156946116).

Almost surely, 2^{40242733133849} is an apocalyptic number.

It is an amenable number.

40242733133849 is a deficient number, since it is larger than the sum of its proper divisors (5894650615).

40242733133849 is an equidigital number, since it uses as much as digits as its factorization.

40242733133849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894650614.

The product of its (nonzero) digits is 10450944, while the sum is 53.

The spelling of 40242733133849 in words is "forty trillion, two hundred forty-two billion, seven hundred thirty-three million, one hundred thirty-three thousand, eight hundred forty-nine".