2125964869 has 16 divisors (see below), whose sum is σ = 2581020288. Its totient is φ = 1709448192.

The previous prime is 2125964843. The next prime is 2125964881. The reversal of 2125964869 is 9684695212.

It is not a de Polignac number, because 2125964869 - 2¹¹ = 2125962821 is a prime.

It is a super-2 number, since 2×2125964869² = 9039453248444374322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125964369) 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 15 ways as a sum of consecutive naturals, for example, 7437 + ... + 65629.

It is an arithmetic number, because the mean of its divisors is an integer number (161313768).

Almost surely, 2^2125964869 is an apocalyptic number.

It is an amenable number.

2125964869 is a deficient number, since it is larger than the sum of its proper divisors (455055419).

2125964869 is a wasteful number, since it uses less digits than its factorization.

2125964869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58524.

The product of its digits is 1866240, while the sum is 52.

The square root of 2125964869 is about 46108.1865724515. The cubic root of 2125964869 is about 1285.8353501915.

The spelling of 2125964869 in words is "two billion, one hundred twenty-five million, nine hundred sixty-four thousand, eight hundred sixty-nine".