40524242509 has 4 divisors (see below), whose sum is σ = 41095006560. Its totient is φ = 39953478460.

The previous prime is 40524242491. The next prime is 40524242513. The reversal of 40524242509 is 90524242504.

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 40524242509 - 2²⁷ = 40390024781 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 (40524242579) 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 3 ways as a sum of consecutive naturals, for example, 285381919 + ... + 285382060.

It is an arithmetic number, because the mean of its divisors is an integer number (10273751640).

Almost surely, 2^40524242509 is an apocalyptic number.

It is an amenable number.

40524242509 is a deficient number, since it is larger than the sum of its proper divisors (570764051).

40524242509 is an equidigital number, since it uses as much as digits as its factorization.

40524242509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570764050.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 40524242509 in words is "forty billion, five hundred twenty-four million, two hundred forty-two thousand, five hundred nine".