42744017965 has 16 divisors (see below), whose sum is σ = 57011579136. Its totient is φ = 30500017600.

The previous prime is 42744017951. The next prime is 42744017969. The reversal of 42744017965 is 56971044724.

It is a happy number.

It is not a de Polignac number, because 42744017965 - 2⁷ = 42744017837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42744017969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7328821 + ... + 7334650.

It is an arithmetic number, because the mean of its divisors is an integer number (3563223696).

Almost surely, 2^42744017965 is an apocalyptic number.

It is an amenable number.

42744017965 is a deficient number, since it is larger than the sum of its proper divisors (14267561171).

42744017965 is a wasteful number, since it uses less digits than its factorization.

42744017965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14663540.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 42744017965 in words is "forty-two billion, seven hundred forty-four million, seventeen thousand, nine hundred sixty-five".