2009550067396 has 81 divisors (see below), whose sum is σ = 3645438869037. Its totient is φ = 969288603360.

The previous prime is 2009550067373. The next prime is 2009550067397. The reversal of 2009550067396 is 6937600559002.

The square root of 2009550067396 is 1417586.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 235432625796 + 1774117441600 = 485214^2 + 1331960^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009550067397) 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 26 ways as a sum of consecutive naturals, for example, 13486913130 + ... + 13486913278.

Almost surely, 2^{2009550067396} is an apocalyptic number.

2009550067396 is the 1417586-th square number.

It is an amenable number.

2009550067396 is a deficient number, since it is larger than the sum of its proper divisors (1635888801641).

2009550067396 is an frugal number, since it uses more digits than its factorization.

2009550067396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 52.

The spelling of 2009550067396 in words is "two trillion, nine billion, five hundred fifty million, sixty-seven thousand, three hundred ninety-six".