2125698899 has 8 divisors (see below), whose sum is σ = 2182100160. Its totient is φ = 2070035136.

The previous prime is 2125698863. The next prime is 2125698917. The reversal of 2125698899 is 9988965212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2125698899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125698829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178532 + ... + 190065.

It is an arithmetic number, because the mean of its divisors is an integer number (272762520).

Almost surely, 2^2125698899 is an apocalyptic number.

2125698899 is a deficient number, since it is larger than the sum of its proper divisors (56401261).

2125698899 is an equidigital number, since it uses as much as digits as its factorization.

2125698899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368749.

The product of its digits is 5598720, while the sum is 59.

The square root of 2125698899 is about 46105.3022872641. The cubic root of 2125698899 is about 1285.7817262431.

The spelling of 2125698899 in words is "two billion, one hundred twenty-five million, six hundred ninety-eight thousand, eight hundred ninety-nine".