2009512666725 has 24 divisors (see below), whose sum is σ = 3352874970720. Its totient is φ = 1061907606720.

The previous prime is 2009512666703. The next prime is 2009512666741. The reversal of 2009512666725 is 5276662159002.

It is a happy number.

It is not a de Polignac number, because 2009512666725 - 2¹³ = 2009512658533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122897799 + ... + 122914148.

It is an arithmetic number, because the mean of its divisors is an integer number (139703123780).

Almost surely, 2^{2009512666725} is an apocalyptic number.

2009512666725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2009512666725 is a deficient number, since it is larger than the sum of its proper divisors (1343362303995).

2009512666725 is a wasteful number, since it uses less digits than its factorization.

2009512666725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245812069 (or 245812064 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 2009512666725 in words is "two trillion, nine billion, five hundred twelve million, six hundred sixty-six thousand, seven hundred twenty-five".