40748557509 has 24 divisors (see below), whose sum is σ = 64216960704. Its totient is φ = 24693360000.

The previous prime is 40748557483. The next prime is 40748557511. The reversal of 40748557509 is 90575584704.

40748557509 is a `hidden beast` number, since 4 + 0 + 7 + 4 + 85 + 57 + 509 = 666.

It is not a de Polignac number, because 40748557509 - 2¹⁵ = 40748524741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40748557519) 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 23 ways as a sum of consecutive naturals, for example, 1211104 + ... + 1244294.

It is an arithmetic number, because the mean of its divisors is an integer number (2675706696).

Almost surely, 2^40748557509 is an apocalyptic number.

It is an amenable number.

40748557509 is a deficient number, since it is larger than the sum of its proper divisors (23468403195).

40748557509 is a wasteful number, since it uses less digits than its factorization.

40748557509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45609 (or 45606 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 40748557509 in words is "forty billion, seven hundred forty-eight million, five hundred fifty-seven thousand, five hundred nine".