2239991502609 has 32 divisors (see below), whose sum is σ = 3621260001280. Its totient is φ = 1203078707712.

The previous prime is 2239991502599. The next prime is 2239991502659. The reversal of 2239991502609 is 9062051999322.

It is not a de Polignac number, because 2239991502609 - 2⁷ = 2239991502481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2239991502659) 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 31 ways as a sum of consecutive naturals, for example, 22051744 + ... + 22153089.

It is an arithmetic number, because the mean of its divisors is an integer number (113164375040).

Almost surely, 2^{2239991502609} is an apocalyptic number.

It is an amenable number.

2239991502609 is a deficient number, since it is larger than the sum of its proper divisors (1381268498671).

2239991502609 is a wasteful number, since it uses less digits than its factorization.

2239991502609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44204989.

The product of its (nonzero) digits is 4723920, while the sum is 57.

The spelling of 2239991502609 in words is "two trillion, two hundred thirty-nine billion, nine hundred ninety-one million, five hundred two thousand, six hundred nine".