2440815308509 has 16 divisors (see below), whose sum is σ = 2532942950400. Its totient is φ = 2349225115776.

The previous prime is 2440815308443. The next prime is 2440815308521. The reversal of 2440815308509 is 9058035180442.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2440815308509 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 (2440815308549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20811577 + ... + 20928529.

It is an arithmetic number, because the mean of its divisors is an integer number (158308934400).

Almost surely, 2^{2440815308509} is an apocalyptic number.

2440815308509 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2440815308509 is a deficient number, since it is larger than the sum of its proper divisors (92127641891).

2440815308509 is a wasteful number, since it uses less digits than its factorization.

2440815308509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119244.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 2440815308509 in words is "two trillion, four hundred forty billion, eight hundred fifteen million, three hundred eight thousand, five hundred nine".