40516011509 has 4 divisors (see below), whose sum is σ = 40578633504. Its totient is φ = 40453389516.

The previous prime is 40516011493. The next prime is 40516011539. The reversal of 40516011509 is 90511061504.

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 40516011509 - 2⁴ = 40516011493 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 (40516011539) 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, 31310027 + ... + 31311320.

It is an arithmetic number, because the mean of its divisors is an integer number (10144658376).

Almost surely, 2^40516011509 is an apocalyptic number.

It is an amenable number.

40516011509 is a deficient number, since it is larger than the sum of its proper divisors (62621995).

40516011509 is an equidigital number, since it uses as much as digits as its factorization.

40516011509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62621994.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 40516011509 in words is "forty billion, five hundred sixteen million, eleven thousand, five hundred nine".