12650050869481 has 3 divisors (see below), whose sum is σ = 12650054426173. Its totient is φ = 12650047312790.

The previous prime is 12650050869479. The next prime is 12650050869541. The reversal of 12650050869481 is 18496805005621.

The square root of 12650050869481 is 3556691.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 12650050869481 - 2¹ = 12650050869479 is a prime.

It is a super-2 number, since 2×12650050869481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12650050860481) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1778346 + ... + 5335036.

Almost surely, 2^{12650050869481} is an apocalyptic number.

12650050869481 is the 3556691-st square number.

12650050869481 is the 1778346-th centered octagonal number.

It is an amenable number.

12650050869481 is a deficient number, since it is larger than the sum of its proper divisors (3556692).

12650050869481 is an frugal number, since it uses more digits than its factorization.

12650050869481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113382 (or 3556691 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 12650050869481 in words is "twelve trillion, six hundred fifty billion, fifty million, eight hundred sixty-nine thousand, four hundred eighty-one".