2125745858 has 24 divisors (see below), whose sum is σ = 3391328304. Its totient is φ = 999137600.

The previous prime is 2125745851. The next prime is 2125745861. The reversal of 2125745858 is 8585475212.

It is not an unprimeable number, because it can be changed into a prime (2125745851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628913 + ... + 632283.

It is an arithmetic number, because the mean of its divisors is an integer number (141305346).

Almost surely, 2^2125745858 is an apocalyptic number.

2125745858 is a deficient number, since it is larger than the sum of its proper divisors (1265582446).

2125745858 is a wasteful number, since it uses less digits than its factorization.

2125745858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498 (or 4481 counting only the distinct ones).

The product of its digits is 896000, while the sum is 47.

The square root of 2125745858 is about 46105.8115425811. The cubic root of 2125745858 is about 1285.7911942789.

The spelling of 2125745858 in words is "two billion, one hundred twenty-five million, seven hundred forty-five thousand, eight hundred fifty-eight".