40023009649 has 16 divisors (see below), whose sum is σ = 47327512320. Its totient is φ = 33115723200.

The previous prime is 40023009643. The next prime is 40023009673. The reversal of 40023009649 is 94690032004.

It is not a de Polignac number, because 40023009649 - 2³ = 40023009641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40023009641) 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 15 ways as a sum of consecutive naturals, for example, 1140012 + ... + 1174594.

It is an arithmetic number, because the mean of its divisors is an integer number (2957969520).

Almost surely, 2^40023009649 is an apocalyptic number.

It is an amenable number.

40023009649 is a deficient number, since it is larger than the sum of its proper divisors (7304502671).

40023009649 is a wasteful number, since it uses less digits than its factorization.

40023009649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40320.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 40023009649 in words is "forty billion, twenty-three million, nine thousand, six hundred forty-nine".